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Finding the Fourth Proportional to 68,861.20, 103,073.10 and 63,612.40

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Solution

The fourth proportional to 68,861.20, 103,073.10 and 63,612.40 is: 95,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,861.20 : 103,073.10 = 63,612.40 : x
  2. Step 2: Convert to fraction form
    68,861.20/103,073.10 = 63,612.40/x
  3. Step 3: Cross multiply
    68,861.20x = 103,073.10 × 63,612.40
  4. Step 4: Simplify right side
    68,861.20x = 6,556,727,266.44
  5. Step 5: Solve for x
    x = 6,556,727,266.44/68,861.20
  6. Step 6: Final answer
    x = 95,216.57

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1.5x scale

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.