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Finding the Fourth Proportional to 64,439.52, 88,724.44 and 58,534.62

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Solution

The fourth proportional to 64,439.52, 88,724.44 and 58,534.62 is: 80,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,439.52 : 88,724.44 = 58,534.62 : x
  2. Step 2: Convert to fraction form
    64,439.52/88,724.44 = 58,534.62/x
  3. Step 3: Cross multiply
    64,439.52x = 88,724.44 × 58,534.62
  4. Step 4: Simplify right side
    64,439.52x = 5,193,451,380.11
  5. Step 5: Solve for x
    x = 5,193,451,380.11/64,439.52
  6. Step 6: Final answer
    x = 80,594.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.