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Finding the Fourth Proportional to 93,374.17, 139,465.85 and 84,475.78

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Solution

The fourth proportional to 93,374.17, 139,465.85 and 84,475.78 is: 126,175.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,374.17 : 139,465.85 = 84,475.78 : x
  2. Step 2: Convert to fraction form
    93,374.17/139,465.85 = 84,475.78/x
  3. Step 3: Cross multiply
    93,374.17x = 139,465.85 × 84,475.78
  4. Step 4: Simplify right side
    93,374.17x = 11,781,485,691.07
  5. Step 5: Solve for x
    x = 11,781,485,691.07/93,374.17
  6. Step 6: Final answer
    x = 126,175.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.