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Finding the Fourth Proportional to 93,458.56, 139,522.08 and 90,177.88

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Solution

The fourth proportional to 93,458.56, 139,522.08 and 90,177.88 is: 134,624.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,458.56 : 139,522.08 = 90,177.88 : x
  2. Step 2: Convert to fraction form
    93,458.56/139,522.08 = 90,177.88/x
  3. Step 3: Cross multiply
    93,458.56x = 139,522.08 × 90,177.88
  4. Step 4: Simplify right side
    93,458.56x = 12,581,805,387.59
  5. Step 5: Solve for x
    x = 12,581,805,387.59/93,458.56
  6. Step 6: Final answer
    x = 134,624.43

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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.