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Finding the Fourth Proportional to 108,484.16, 162,766.26 and 45,310.88

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Solution

The fourth proportional to 108,484.16, 162,766.26 and 45,310.88 is: 67,983.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,484.16 : 162,766.26 = 45,310.88 : x
  2. Step 2: Convert to fraction form
    108,484.16/162,766.26 = 45,310.88/x
  3. Step 3: Cross multiply
    108,484.16x = 162,766.26 × 45,310.88
  4. Step 4: Simplify right side
    108,484.16x = 7,375,082,474.91
  5. Step 5: Solve for x
    x = 7,375,082,474.91/108,484.16
  6. Step 6: Final answer
    x = 67,983.04

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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.