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Finding the Fourth Proportional to 118,470.68, 177,737.17 and 42,576.88

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Solution

The fourth proportional to 118,470.68, 177,737.17 and 42,576.88 is: 63,876.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,470.68 : 177,737.17 = 42,576.88 : x
  2. Step 2: Convert to fraction form
    118,470.68/177,737.17 = 42,576.88/x
  3. Step 3: Cross multiply
    118,470.68x = 177,737.17 × 42,576.88
  4. Step 4: Simplify right side
    118,470.68x = 7,567,493,607.84
  5. Step 5: Solve for x
    x = 7,567,493,607.84/118,470.68
  6. Step 6: Final answer
    x = 63,876.51

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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.