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Finding the Fourth Proportional to 67,672.70, 101,221.05 and 60,703.10

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Solution

The fourth proportional to 67,672.70, 101,221.05 and 60,703.10 is: 90,796.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,672.70 : 101,221.05 = 60,703.10 : x
  2. Step 2: Convert to fraction form
    67,672.70/101,221.05 = 60,703.10/x
  3. Step 3: Cross multiply
    67,672.70x = 101,221.05 × 60,703.10
  4. Step 4: Simplify right side
    67,672.70x = 6,144,431,520.26
  5. Step 5: Solve for x
    x = 6,144,431,520.26/67,672.70
  6. Step 6: Final answer
    x = 90,796.31

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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.