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Finding the Fourth Proportional to 108,892.20, 163,343.10 and 61,506.60

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Solution

The fourth proportional to 108,892.20, 163,343.10 and 61,506.60 is: 92,262.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,892.20 : 163,343.10 = 61,506.60 : x
  2. Step 2: Convert to fraction form
    108,892.20/163,343.10 = 61,506.60/x
  3. Step 3: Cross multiply
    108,892.20x = 163,343.10 × 61,506.60
  4. Step 4: Simplify right side
    108,892.20x = 10,046,678,714.46
  5. Step 5: Solve for x
    x = 10,046,678,714.46/108,892.20
  6. Step 6: Final answer
    x = 92,262.61

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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.