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Finding the Fourth Proportional to 74,472.10, 111,708.15 and 74,472.10

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Solution

The fourth proportional to 74,472.10, 111,708.15 and 74,472.10 is: 111,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,472.10 : 111,708.15 = 74,472.10 : x
  2. Step 2: Convert to fraction form
    74,472.10/111,708.15 = 74,472.10/x
  3. Step 3: Cross multiply
    74,472.10x = 111,708.15 × 74,472.10
  4. Step 4: Simplify right side
    74,472.10x = 8,319,140,517.62
  5. Step 5: Solve for x
    x = 8,319,140,517.62/74,472.10
  6. Step 6: Final answer
    x = 111,708.15

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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.