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Finding the Fourth Proportional to 67,672.20, 101,220.30 and 60,702.60

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Solution

The fourth proportional to 67,672.20, 101,220.30 and 60,702.60 is: 90,795.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,672.20 : 101,220.30 = 60,702.60 : x
  2. Step 2: Convert to fraction form
    67,672.20/101,220.30 = 60,702.60/x
  3. Step 3: Cross multiply
    67,672.20x = 101,220.30 × 60,702.60
  4. Step 4: Simplify right side
    67,672.20x = 6,144,335,382.78
  5. Step 5: Solve for x
    x = 6,144,335,382.78/67,672.20
  6. Step 6: Final answer
    x = 90,795.56

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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.