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Finding the Fourth Proportional to 88,704.80, 133,057.20 and 60,711.20

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Solution

The fourth proportional to 88,704.80, 133,057.20 and 60,711.20 is: 91,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,704.80 : 133,057.20 = 60,711.20 : x
  2. Step 2: Convert to fraction form
    88,704.80/133,057.20 = 60,711.20/x
  3. Step 3: Cross multiply
    88,704.80x = 133,057.20 × 60,711.20
  4. Step 4: Simplify right side
    88,704.80x = 8,078,062,280.64
  5. Step 5: Solve for x
    x = 8,078,062,280.64/88,704.80
  6. Step 6: Final answer
    x = 91,066.80

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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.