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Finding the Fourth Proportional to 275,618.40, 413,427.60 and 88,648.80

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Solution

The fourth proportional to 275,618.40, 413,427.60 and 88,648.80 is: 132,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,618.40 : 413,427.60 = 88,648.80 : x
  2. Step 2: Convert to fraction form
    275,618.40/413,427.60 = 88,648.80/x
  3. Step 3: Cross multiply
    275,618.40x = 413,427.60 × 88,648.80
  4. Step 4: Simplify right side
    275,618.40x = 36,649,860,626.88
  5. Step 5: Solve for x
    x = 36,649,860,626.88/275,618.40
  6. Step 6: Final answer
    x = 132,973.20

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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.