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Finding the Fourth Proportional to 225,765.60, 338,624.64 and 92,659.92

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Solution

The fourth proportional to 225,765.60, 338,624.64 and 92,659.92 is: 138,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,765.60 : 338,624.64 = 92,659.92 : x
  2. Step 2: Convert to fraction form
    225,765.60/338,624.64 = 92,659.92/x
  3. Step 3: Cross multiply
    225,765.60x = 338,624.64 × 92,659.92
  4. Step 4: Simplify right side
    225,765.60x = 31,376,932,052.43
  5. Step 5: Solve for x
    x = 31,376,932,052.43/225,765.60
  6. Step 6: Final answer
    x = 138,980.13

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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.