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Finding the Fourth Proportional to 225,507.65, 338,261.24 and 92,388.15

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Solution

The fourth proportional to 225,507.65, 338,261.24 and 92,388.15 is: 138,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,507.65 : 338,261.24 = 92,388.15 : x
  2. Step 2: Convert to fraction form
    225,507.65/338,261.24 = 92,388.15/x
  3. Step 3: Cross multiply
    225,507.65x = 338,261.24 × 92,388.15
  4. Step 4: Simplify right side
    225,507.65x = 31,251,329,142.80
  5. Step 5: Solve for x
    x = 31,251,329,142.80/225,507.65
  6. Step 6: Final answer
    x = 138,582.12

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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.