<PRE><B>Question 1179673</B>
Let&#39;s solve this problem step-by-step:

**1. Set the Formulas Equal:**

We want to find the height (x) where both formulas give the same ideal body weight (W). So we set the two formulas equal to each other:

51 + 1.9x = 55.2 + 1.44x

**2. Solve for x:**

* Subtract 1.44x from both sides:
   51 + 0.46x = 55.2

* Subtract 51 from both sides:
   0.46x = 4.2

* Divide by 0.46:
   x = 4.2 / 0.46
   x ≈ 9.13

**3. Round to the Nearest Whole Number:**

* x ≈ 9 inches

**4. Calculate the Height in Total Inches:**

* Remember that x is the height in inches above 60 inches.
* Total height = 60 + x
* Total height = 60 + 9 = 69 inches

**Answer:**

Both formulas give the same ideal body weight at a height of 69 inches.
</PRE>