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Finding the Fourth Proportional to 85,753.44, 118,452.24 and 63,138.24

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Solution

The fourth proportional to 85,753.44, 118,452.24 and 63,138.24 is: 87,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,753.44 : 118,452.24 = 63,138.24 : x
  2. Step 2: Convert to fraction form
    85,753.44/118,452.24 = 63,138.24/x
  3. Step 3: Cross multiply
    85,753.44x = 118,452.24 × 63,138.24
  4. Step 4: Simplify right side
    85,753.44x = 7,478,865,957.66
  5. Step 5: Solve for x
    x = 7,478,865,957.66/85,753.44
  6. Step 6: Final answer
    x = 87,213.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.