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Finding the Fourth Proportional to 117,538.21, 176,269.92 and 38,634.22

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Solution

The fourth proportional to 117,538.21, 176,269.92 and 38,634.22 is: 57,939.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,538.21 : 176,269.92 = 38,634.22 : x
  2. Step 2: Convert to fraction form
    117,538.21/176,269.92 = 38,634.22/x
  3. Step 3: Cross multiply
    117,538.21x = 176,269.92 × 38,634.22
  4. Step 4: Simplify right side
    117,538.21x = 6,810,050,868.66
  5. Step 5: Solve for x
    x = 6,810,050,868.66/117,538.21
  6. Step 6: Final answer
    x = 57,939.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.