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Finding the Fourth Proportional to 125,654.93, 188,479.78 and 41,420.13

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Solution

The fourth proportional to 125,654.93, 188,479.78 and 41,420.13 is: 62,129.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,654.93 : 188,479.78 = 41,420.13 : x
  2. Step 2: Convert to fraction form
    125,654.93/188,479.78 = 41,420.13/x
  3. Step 3: Cross multiply
    125,654.93x = 188,479.78 × 41,420.13
  4. Step 4: Simplify right side
    125,654.93x = 7,806,856,179.62
  5. Step 5: Solve for x
    x = 7,806,856,179.62/125,654.93
  6. Step 6: Final answer
    x = 62,129.33

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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.