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Finding the Fourth Proportional to 97,793.60, 146,593.20 and 45,111.20

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Solution

The fourth proportional to 97,793.60, 146,593.20 and 45,111.20 is: 67,621.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,793.60 : 146,593.20 = 45,111.20 : x
  2. Step 2: Convert to fraction form
    97,793.60/146,593.20 = 45,111.20/x
  3. Step 3: Cross multiply
    97,793.60x = 146,593.20 × 45,111.20
  4. Step 4: Simplify right side
    97,793.60x = 6,612,995,163.84
  5. Step 5: Solve for x
    x = 6,612,995,163.84/97,793.60
  6. Step 6: Final answer
    x = 67,621.96

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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.