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Finding the Fourth Proportional to 275,836.80, 413,755.20 and 98,349.60

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Solution

The fourth proportional to 275,836.80, 413,755.20 and 98,349.60 is: 147,524.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,836.80 : 413,755.20 = 98,349.60 : x
  2. Step 2: Convert to fraction form
    275,836.80/413,755.20 = 98,349.60/x
  3. Step 3: Cross multiply
    275,836.80x = 413,755.20 × 98,349.60
  4. Step 4: Simplify right side
    275,836.80x = 40,692,658,417.92
  5. Step 5: Solve for x
    x = 40,692,658,417.92/275,836.80
  6. Step 6: Final answer
    x = 147,524.40

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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.