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Finding the Fourth Proportional to 93,149.68, 139,781.76 and 36,979.96

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Solution

The fourth proportional to 93,149.68, 139,781.76 and 36,979.96 is: 55,492.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,149.68 : 139,781.76 = 36,979.96 : x
  2. Step 2: Convert to fraction form
    93,149.68/139,781.76 = 36,979.96/x
  3. Step 3: Cross multiply
    93,149.68x = 139,781.76 × 36,979.96
  4. Step 4: Simplify right side
    93,149.68x = 5,169,123,893.53
  5. Step 5: Solve for x
    x = 5,169,123,893.53/93,149.68
  6. Step 6: Final answer
    x = 55,492.66

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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.