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Finding the Fourth Proportional to 108,060.92, 161,955.03 and 54,766.30

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Solution

The fourth proportional to 108,060.92, 161,955.03 and 54,766.30 is: 82,080.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,060.92 : 161,955.03 = 54,766.30 : x
  2. Step 2: Convert to fraction form
    108,060.92/161,955.03 = 54,766.30/x
  3. Step 3: Cross multiply
    108,060.92x = 161,955.03 × 54,766.30
  4. Step 4: Simplify right side
    108,060.92x = 8,869,676,949.71
  5. Step 5: Solve for x
    x = 8,869,676,949.71/108,060.92
  6. Step 6: Final answer
    x = 82,080.34

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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.