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Finding the Fourth Proportional to 101,693.52, 140,337.24 and 56,372.20

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Solution

The fourth proportional to 101,693.52, 140,337.24 and 56,372.20 is: 77,793.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,693.52 : 140,337.24 = 56,372.20 : x
  2. Step 2: Convert to fraction form
    101,693.52/140,337.24 = 56,372.20/x
  3. Step 3: Cross multiply
    101,693.52x = 140,337.24 × 56,372.20
  4. Step 4: Simplify right side
    101,693.52x = 7,911,118,960.73
  5. Step 5: Solve for x
    x = 7,911,118,960.73/101,693.52
  6. Step 6: Final answer
    x = 77,793.74

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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.