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Finding the Fourth Proportional to 52,167.40, 78,251.10 and 49,892.20

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Solution

The fourth proportional to 52,167.40, 78,251.10 and 49,892.20 is: 74,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,167.40 : 78,251.10 = 49,892.20 : x
  2. Step 2: Convert to fraction form
    52,167.40/78,251.10 = 49,892.20/x
  3. Step 3: Cross multiply
    52,167.40x = 78,251.10 × 49,892.20
  4. Step 4: Simplify right side
    52,167.40x = 3,904,119,531.42
  5. Step 5: Solve for x
    x = 3,904,119,531.42/52,167.40
  6. Step 6: Final answer
    x = 74,838.30

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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.