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Finding the Fourth Proportional to 296,565.60, 444,805.20 and 86,181.60

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Solution

The fourth proportional to 296,565.60, 444,805.20 and 86,181.60 is: 129,259.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,565.60 : 444,805.20 = 86,181.60 : x
  2. Step 2: Convert to fraction form
    296,565.60/444,805.20 = 86,181.60/x
  3. Step 3: Cross multiply
    296,565.60x = 444,805.20 × 86,181.60
  4. Step 4: Simplify right side
    296,565.60x = 38,334,023,824.32
  5. Step 5: Solve for x
    x = 38,334,023,824.32/296,565.60
  6. Step 6: Final answer
    x = 129,259.85

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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.