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Finding the Fourth Proportional to 118,468.54, 177,712.16 and 39,583.04

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Solution

The fourth proportional to 118,468.54, 177,712.16 and 39,583.04 is: 59,377.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,468.54 : 177,712.16 = 39,583.04 : x
  2. Step 2: Convert to fraction form
    118,468.54/177,712.16 = 39,583.04/x
  3. Step 3: Cross multiply
    118,468.54x = 177,712.16 × 39,583.04
  4. Step 4: Simplify right side
    118,468.54x = 7,034,387,537.77
  5. Step 5: Solve for x
    x = 7,034,387,537.77/118,468.54
  6. Step 6: Final answer
    x = 59,377.68

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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.