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Finding the Fourth Proportional to 185,398.56, 278,007.12 and 67,052.16

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Solution

The fourth proportional to 185,398.56, 278,007.12 and 67,052.16 is: 100,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,398.56 : 278,007.12 = 67,052.16 : x
  2. Step 2: Convert to fraction form
    185,398.56/278,007.12 = 67,052.16/x
  3. Step 3: Cross multiply
    185,398.56x = 278,007.12 × 67,052.16
  4. Step 4: Simplify right side
    185,398.56x = 18,640,977,891.38
  5. Step 5: Solve for x
    x = 18,640,977,891.38/185,398.56
  6. Step 6: Final answer
    x = 100,545.43

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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.