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Finding the Fourth Proportional to 80,750.40, 121,010.40 and 59,524.80

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Solution

The fourth proportional to 80,750.40, 121,010.40 and 59,524.80 is: 89,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,750.40 : 121,010.40 = 59,524.80 : x
  2. Step 2: Convert to fraction form
    80,750.40/121,010.40 = 59,524.80/x
  3. Step 3: Cross multiply
    80,750.40x = 121,010.40 × 59,524.80
  4. Step 4: Simplify right side
    80,750.40x = 7,203,119,857.92
  5. Step 5: Solve for x
    x = 7,203,119,857.92/80,750.40
  6. Step 6: Final answer
    x = 89,202.28

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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.