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Finding the Fourth Proportional to 225,535.32, 338,302.85 and 90,599.38

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Solution

The fourth proportional to 225,535.32, 338,302.85 and 90,599.38 is: 135,899.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,535.32 : 338,302.85 = 90,599.38 : x
  2. Step 2: Convert to fraction form
    225,535.32/338,302.85 = 90,599.38/x
  3. Step 3: Cross multiply
    225,535.32x = 338,302.85 × 90,599.38
  4. Step 4: Simplify right side
    225,535.32x = 30,650,027,842.97
  5. Step 5: Solve for x
    x = 30,650,027,842.97/225,535.32
  6. Step 6: Final answer
    x = 135,899.02

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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.