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Finding the Fourth Proportional to 125,490.90, 188,259.66 and 41,255.76

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Solution

The fourth proportional to 125,490.90, 188,259.66 and 41,255.76 is: 61,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,490.90 : 188,259.66 = 41,255.76 : x
  2. Step 2: Convert to fraction form
    125,490.90/188,259.66 = 41,255.76/x
  3. Step 3: Cross multiply
    125,490.90x = 188,259.66 × 41,255.76
  4. Step 4: Simplify right side
    125,490.90x = 7,766,795,350.64
  5. Step 5: Solve for x
    x = 7,766,795,350.64/125,490.90
  6. Step 6: Final answer
    x = 61,891.30

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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.