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Finding the Fourth Proportional to 275,545.98, 413,318.70 and 75,867.48

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Solution

The fourth proportional to 275,545.98, 413,318.70 and 75,867.48 is: 113,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,545.98 : 413,318.70 = 75,867.48 : x
  2. Step 2: Convert to fraction form
    275,545.98/413,318.70 = 75,867.48/x
  3. Step 3: Cross multiply
    275,545.98x = 413,318.70 × 75,867.48
  4. Step 4: Simplify right side
    275,545.98x = 31,357,448,205.88
  5. Step 5: Solve for x
    x = 31,357,448,205.88/275,545.98
  6. Step 6: Final answer
    x = 113,801.15

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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.