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Finding the Fourth Proportional to 125,772.88, 188,619.18 and 41,517.40

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Solution

The fourth proportional to 125,772.88, 188,619.18 and 41,517.40 is: 62,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,772.88 : 188,619.18 = 41,517.40 : x
  2. Step 2: Convert to fraction form
    125,772.88/188,619.18 = 41,517.40/x
  3. Step 3: Cross multiply
    125,772.88x = 188,619.18 × 41,517.40
  4. Step 4: Simplify right side
    125,772.88x = 7,830,977,943.73
  5. Step 5: Solve for x
    x = 7,830,977,943.73/125,772.88
  6. Step 6: Final answer
    x = 62,262.85

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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.