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Finding the Fourth Proportional to 65,166.72, 97,750.17 and 20,793.66

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Solution

The fourth proportional to 65,166.72, 97,750.17 and 20,793.66 is: 31,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,166.72 : 97,750.17 = 20,793.66 : x
  2. Step 2: Convert to fraction form
    65,166.72/97,750.17 = 20,793.66/x
  3. Step 3: Cross multiply
    65,166.72x = 97,750.17 × 20,793.66
  4. Step 4: Simplify right side
    65,166.72x = 2,032,583,799.92
  5. Step 5: Solve for x
    x = 2,032,583,799.92/65,166.72
  6. Step 6: Final answer
    x = 31,190.52

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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.