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Finding the Fourth Proportional to 115,910.60, 173,865.90 and 45,753.80

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Solution

The fourth proportional to 115,910.60, 173,865.90 and 45,753.80 is: 68,630.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,910.60 : 173,865.90 = 45,753.80 : x
  2. Step 2: Convert to fraction form
    115,910.60/173,865.90 = 45,753.80/x
  3. Step 3: Cross multiply
    115,910.60x = 173,865.90 × 45,753.80
  4. Step 4: Simplify right side
    115,910.60x = 7,955,025,615.42
  5. Step 5: Solve for x
    x = 7,955,025,615.42/115,910.60
  6. Step 6: Final answer
    x = 68,630.70

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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.