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Finding the Fourth Proportional to 104,560.89, 156,753.15 and 45,351.98

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Solution

The fourth proportional to 104,560.89, 156,753.15 and 45,351.98 is: 67,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,560.89 : 156,753.15 = 45,351.98 : x
  2. Step 2: Convert to fraction form
    104,560.89/156,753.15 = 45,351.98/x
  3. Step 3: Cross multiply
    104,560.89x = 156,753.15 × 45,351.98
  4. Step 4: Simplify right side
    104,560.89x = 7,109,064,939.97
  5. Step 5: Solve for x
    x = 7,109,064,939.97/104,560.89
  6. Step 6: Final answer
    x = 67,989.71

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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.