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Finding the Fourth Proportional to 225,593.12, 338,400.05 and 92,379.95

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Solution

The fourth proportional to 225,593.12, 338,400.05 and 92,379.95 is: 138,574.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,593.12 : 338,400.05 = 92,379.95 : x
  2. Step 2: Convert to fraction form
    225,593.12/338,400.05 = 92,379.95/x
  3. Step 3: Cross multiply
    225,593.12x = 338,400.05 × 92,379.95
  4. Step 4: Simplify right side
    225,593.12x = 31,261,381,237.24
  5. Step 5: Solve for x
    x = 31,261,381,237.24/225,593.12
  6. Step 6: Final answer
    x = 138,574.18

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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.