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Finding the Fourth Proportional to 275,282.20, 412,923.30 and 88,312.60

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Solution

The fourth proportional to 275,282.20, 412,923.30 and 88,312.60 is: 132,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,282.20 : 412,923.30 = 88,312.60 : x
  2. Step 2: Convert to fraction form
    275,282.20/412,923.30 = 88,312.60/x
  3. Step 3: Cross multiply
    275,282.20x = 412,923.30 × 88,312.60
  4. Step 4: Simplify right side
    275,282.20x = 36,466,330,223.58
  5. Step 5: Solve for x
    x = 36,466,330,223.58/275,282.20
  6. Step 6: Final answer
    x = 132,468.90

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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.