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Finding the Fourth Proportional to 108,098.20, 162,243.30 and 63,669.40

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Solution

The fourth proportional to 108,098.20, 162,243.30 and 63,669.40 is: 95,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,098.20 : 162,243.30 = 63,669.40 : x
  2. Step 2: Convert to fraction form
    108,098.20/162,243.30 = 63,669.40/x
  3. Step 3: Cross multiply
    108,098.20x = 162,243.30 × 63,669.40
  4. Step 4: Simplify right side
    108,098.20x = 10,329,933,565.02
  5. Step 5: Solve for x
    x = 10,329,933,565.02/108,098.20
  6. Step 6: Final answer
    x = 95,560.64

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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.