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Finding the Fourth Proportional to 125,605.80, 188,387.64 and 41,366.88

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Solution

The fourth proportional to 125,605.80, 188,387.64 and 41,366.88 is: 62,043.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,605.80 : 188,387.64 = 41,366.88 : x
  2. Step 2: Convert to fraction form
    125,605.80/188,387.64 = 41,366.88/x
  3. Step 3: Cross multiply
    125,605.80x = 188,387.64 × 41,366.88
  4. Step 4: Simplify right side
    125,605.80x = 7,793,008,897.36
  5. Step 5: Solve for x
    x = 7,793,008,897.36/125,605.80
  6. Step 6: Final answer
    x = 62,043.38

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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.