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Finding the Fourth Proportional to 275,825.10, 413,640.45 and 98,337.90

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Solution

The fourth proportional to 275,825.10, 413,640.45 and 98,337.90 is: 147,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,825.10 : 413,640.45 = 98,337.90 : x
  2. Step 2: Convert to fraction form
    275,825.10/413,640.45 = 98,337.90/x
  3. Step 3: Cross multiply
    275,825.10x = 413,640.45 × 98,337.90
  4. Step 4: Simplify right side
    275,825.10x = 40,676,533,208.06
  5. Step 5: Solve for x
    x = 40,676,533,208.06/275,825.10
  6. Step 6: Final answer
    x = 147,472.20

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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.