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Finding the Fourth Proportional to 93,761.89, 129,377.49 and 56,948.96

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Solution

The fourth proportional to 93,761.89, 129,377.49 and 56,948.96 is: 78,581.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,761.89 : 129,377.49 = 56,948.96 : x
  2. Step 2: Convert to fraction form
    93,761.89/129,377.49 = 56,948.96/x
  3. Step 3: Cross multiply
    93,761.89x = 129,377.49 × 56,948.96
  4. Step 4: Simplify right side
    93,761.89x = 7,367,913,502.91
  5. Step 5: Solve for x
    x = 7,367,913,502.91/93,761.89
  6. Step 6: Final answer
    x = 78,581.11

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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.