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Finding the Fourth Proportional to 325,299.60, 487,949.28 and 88,643.52

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Solution

The fourth proportional to 325,299.60, 487,949.28 and 88,643.52 is: 132,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,299.60 : 487,949.28 = 88,643.52 : x
  2. Step 2: Convert to fraction form
    325,299.60/487,949.28 = 88,643.52/x
  3. Step 3: Cross multiply
    325,299.60x = 487,949.28 × 88,643.52
  4. Step 4: Simplify right side
    325,299.60x = 43,253,541,760.67
  5. Step 5: Solve for x
    x = 43,253,541,760.67/325,299.60
  6. Step 6: Final answer
    x = 132,965.25

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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.