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Finding the Fourth Proportional to 118,460.56, 177,773.87 and 68,471.87

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Solution

The fourth proportional to 118,460.56, 177,773.87 and 68,471.87 is: 102,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,460.56 : 177,773.87 = 68,471.87 : x
  2. Step 2: Convert to fraction form
    118,460.56/177,773.87 = 68,471.87/x
  3. Step 3: Cross multiply
    118,460.56x = 177,773.87 × 68,471.87
  4. Step 4: Simplify right side
    118,460.56x = 12,172,509,316.04
  5. Step 5: Solve for x
    x = 12,172,509,316.04/118,460.56
  6. Step 6: Final answer
    x = 102,755.80

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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.