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Finding the Fourth Proportional to 79,308.96, 109,560.24 and 63,372.48

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Solution

The fourth proportional to 79,308.96, 109,560.24 and 63,372.48 is: 87,545.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,308.96 : 109,560.24 = 63,372.48 : x
  2. Step 2: Convert to fraction form
    79,308.96/109,560.24 = 63,372.48/x
  3. Step 3: Cross multiply
    79,308.96x = 109,560.24 × 63,372.48
  4. Step 4: Simplify right side
    79,308.96x = 6,943,104,118.20
  5. Step 5: Solve for x
    x = 6,943,104,118.20/79,308.96
  6. Step 6: Final answer
    x = 87,545.02

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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.