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Finding the Fourth Proportional to 71,376.52, 98,545.82 and 45,894.32

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Solution

The fourth proportional to 71,376.52, 98,545.82 and 45,894.32 is: 63,363.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,376.52 : 98,545.82 = 45,894.32 : x
  2. Step 2: Convert to fraction form
    71,376.52/98,545.82 = 45,894.32/x
  3. Step 3: Cross multiply
    71,376.52x = 98,545.82 × 45,894.32
  4. Step 4: Simplify right side
    71,376.52x = 4,522,693,397.74
  5. Step 5: Solve for x
    x = 4,522,693,397.74/71,376.52
  6. Step 6: Final answer
    x = 63,363.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.