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Finding the Fourth Proportional to 88,732.40, 133,098.60 and 80,567.60

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Solution

The fourth proportional to 88,732.40, 133,098.60 and 80,567.60 is: 120,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,732.40 : 133,098.60 = 80,567.60 : x
  2. Step 2: Convert to fraction form
    88,732.40/133,098.60 = 80,567.60/x
  3. Step 3: Cross multiply
    88,732.40x = 133,098.60 × 80,567.60
  4. Step 4: Simplify right side
    88,732.40x = 10,723,434,765.36
  5. Step 5: Solve for x
    x = 10,723,434,765.36/88,732.40
  6. Step 6: Final answer
    x = 120,851.40

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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.