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Finding the Fourth Proportional to 65,134.80, 97,702.20 and 60,760.80

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Solution

The fourth proportional to 65,134.80, 97,702.20 and 60,760.80 is: 91,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,134.80 : 97,702.20 = 60,760.80 : x
  2. Step 2: Convert to fraction form
    65,134.80/97,702.20 = 60,760.80/x
  3. Step 3: Cross multiply
    65,134.80x = 97,702.20 × 60,760.80
  4. Step 4: Simplify right side
    65,134.80x = 5,936,463,833.76
  5. Step 5: Solve for x
    x = 5,936,463,833.76/65,134.80
  6. Step 6: Final answer
    x = 91,141.20

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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.