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Finding the Fourth Proportional to 275,827.80, 413,741.70 and 98,340.60

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Solution

The fourth proportional to 275,827.80, 413,741.70 and 98,340.60 is: 147,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,827.80 : 413,741.70 = 98,340.60 : x
  2. Step 2: Convert to fraction form
    275,827.80/413,741.70 = 98,340.60/x
  3. Step 3: Cross multiply
    275,827.80x = 413,741.70 × 98,340.60
  4. Step 4: Simplify right side
    275,827.80x = 40,687,607,023.02
  5. Step 5: Solve for x
    x = 40,687,607,023.02/275,827.80
  6. Step 6: Final answer
    x = 147,510.90

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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.