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Finding the Fourth Proportional to 65,102.10, 97,861.95 and 60,479.70

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Solution

The fourth proportional to 65,102.10, 97,861.95 and 60,479.70 is: 90,913.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,102.10 : 97,861.95 = 60,479.70 : x
  2. Step 2: Convert to fraction form
    65,102.10/97,861.95 = 60,479.70/x
  3. Step 3: Cross multiply
    65,102.10x = 97,861.95 × 60,479.70
  4. Step 4: Simplify right side
    65,102.10x = 5,918,661,377.42
  5. Step 5: Solve for x
    x = 5,918,661,377.42/65,102.10
  6. Step 6: Final answer
    x = 90,913.52

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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.