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Finding the Fourth Proportional to 65,214.20, 97,821.30 and 60,807.80

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Solution

The fourth proportional to 65,214.20, 97,821.30 and 60,807.80 is: 91,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,214.20 : 97,821.30 = 60,807.80 : x
  2. Step 2: Convert to fraction form
    65,214.20/97,821.30 = 60,807.80/x
  3. Step 3: Cross multiply
    65,214.20x = 97,821.30 × 60,807.80
  4. Step 4: Simplify right side
    65,214.20x = 5,948,298,046.14
  5. Step 5: Solve for x
    x = 5,948,298,046.14/65,214.20
  6. Step 6: Final answer
    x = 91,211.70

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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.