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Finding the Fourth Proportional to 118,918.66, 178,355.31 and 59,737.90

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Solution

The fourth proportional to 118,918.66, 178,355.31 and 59,737.90 is: 89,595.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,918.66 : 178,355.31 = 59,737.90 : x
  2. Step 2: Convert to fraction form
    118,918.66/178,355.31 = 59,737.90/x
  3. Step 3: Cross multiply
    118,918.66x = 178,355.31 × 59,737.90
  4. Step 4: Simplify right side
    118,918.66x = 10,654,571,673.25
  5. Step 5: Solve for x
    x = 10,654,571,673.25/118,918.66
  6. Step 6: Final answer
    x = 89,595.46

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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.