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Finding the Fourth Proportional to 178,750.92, 268,126.14 and 45,631.17

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Solution

The fourth proportional to 178,750.92, 268,126.14 and 45,631.17 is: 68,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,750.92 : 268,126.14 = 45,631.17 : x
  2. Step 2: Convert to fraction form
    178,750.92/268,126.14 = 45,631.17/x
  3. Step 3: Cross multiply
    178,750.92x = 268,126.14 × 45,631.17
  4. Step 4: Simplify right side
    178,750.92x = 12,234,909,475.78
  5. Step 5: Solve for x
    x = 12,234,909,475.78/178,750.92
  6. Step 6: Final answer
    x = 68,446.69

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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.