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Finding the Fourth Proportional to 96,697.60, 145,053.18 and 40,480.97

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Solution

The fourth proportional to 96,697.60, 145,053.18 and 40,480.97 is: 60,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,697.60 : 145,053.18 = 40,480.97 : x
  2. Step 2: Convert to fraction form
    96,697.60/145,053.18 = 40,480.97/x
  3. Step 3: Cross multiply
    96,697.60x = 145,053.18 × 40,480.97
  4. Step 4: Simplify right side
    96,697.60x = 5,871,892,702.72
  5. Step 5: Solve for x
    x = 5,871,892,702.72/96,697.60
  6. Step 6: Final answer
    x = 60,724.29

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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.