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Finding the Fourth Proportional to 108,522.10, 162,783.15 and 71,197.30

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Solution

The fourth proportional to 108,522.10, 162,783.15 and 71,197.30 is: 106,795.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,522.10 : 162,783.15 = 71,197.30 : x
  2. Step 2: Convert to fraction form
    108,522.10/162,783.15 = 71,197.30/x
  3. Step 3: Cross multiply
    108,522.10x = 162,783.15 × 71,197.30
  4. Step 4: Simplify right side
    108,522.10x = 11,589,720,765.50
  5. Step 5: Solve for x
    x = 11,589,720,765.50/108,522.10
  6. Step 6: Final answer
    x = 106,795.95

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Similar ratio
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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.