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Finding the Fourth Proportional to 108,411.20, 162,616.80 and 29,525.30

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Solution

The fourth proportional to 108,411.20, 162,616.80 and 29,525.30 is: 44,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,411.20 : 162,616.80 = 29,525.30 : x
  2. Step 2: Convert to fraction form
    108,411.20/162,616.80 = 29,525.30/x
  3. Step 3: Cross multiply
    108,411.20x = 162,616.80 × 29,525.30
  4. Step 4: Simplify right side
    108,411.20x = 4,801,309,805.04
  5. Step 5: Solve for x
    x = 4,801,309,805.04/108,411.20
  6. Step 6: Final answer
    x = 44,287.95

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1.5x scale

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.