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Finding the Fourth Proportional to 125,229.65, 187,918.18 and 46,398.83

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Solution

The fourth proportional to 125,229.65, 187,918.18 and 46,398.83 is: 69,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,229.65 : 187,918.18 = 46,398.83 : x
  2. Step 2: Convert to fraction form
    125,229.65/187,918.18 = 46,398.83/x
  3. Step 3: Cross multiply
    125,229.65x = 187,918.18 × 46,398.83
  4. Step 4: Simplify right side
    125,229.65x = 8,719,182,632.14
  5. Step 5: Solve for x
    x = 8,719,182,632.14/125,229.65
  6. Step 6: Final answer
    x = 69,625.55

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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.