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Finding the Fourth Proportional to 108,435.20, 162,652.80 and 29,549.30

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Solution

The fourth proportional to 108,435.20, 162,652.80 and 29,549.30 is: 44,323.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,435.20 : 162,652.80 = 29,549.30 : x
  2. Step 2: Convert to fraction form
    108,435.20/162,652.80 = 29,549.30/x
  3. Step 3: Cross multiply
    108,435.20x = 162,652.80 × 29,549.30
  4. Step 4: Simplify right side
    108,435.20x = 4,806,276,383.04
  5. Step 5: Solve for x
    x = 4,806,276,383.04/108,435.20
  6. Step 6: Final answer
    x = 44,323.95

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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.