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Finding the Fourth Proportional to 75,327.20, 112,861.20 and 63,663.20

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Solution

The fourth proportional to 75,327.20, 112,861.20 and 63,663.20 is: 95,385.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,327.20 : 112,861.20 = 63,663.20 : x
  2. Step 2: Convert to fraction form
    75,327.20/112,861.20 = 63,663.20/x
  3. Step 3: Cross multiply
    75,327.20x = 112,861.20 × 63,663.20
  4. Step 4: Simplify right side
    75,327.20x = 7,185,105,147.84
  5. Step 5: Solve for x
    x = 7,185,105,147.84/75,327.20
  6. Step 6: Final answer
    x = 95,385.27

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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.