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Finding the Fourth Proportional to 275,627.40, 413,441.10 and 88,657.80

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Solution

The fourth proportional to 275,627.40, 413,441.10 and 88,657.80 is: 132,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,627.40 : 413,441.10 = 88,657.80 : x
  2. Step 2: Convert to fraction form
    275,627.40/413,441.10 = 88,657.80/x
  3. Step 3: Cross multiply
    275,627.40x = 413,441.10 × 88,657.80
  4. Step 4: Simplify right side
    275,627.40x = 36,654,778,355.58
  5. Step 5: Solve for x
    x = 36,654,778,355.58/275,627.40
  6. Step 6: Final answer
    x = 132,986.70

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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.