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Finding the Fourth Proportional to 107,626.60, 161,439.90 and 82,714.60

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Solution

The fourth proportional to 107,626.60, 161,439.90 and 82,714.60 is: 124,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,626.60 : 161,439.90 = 82,714.60 : x
  2. Step 2: Convert to fraction form
    107,626.60/161,439.90 = 82,714.60/x
  3. Step 3: Cross multiply
    107,626.60x = 161,439.90 × 82,714.60
  4. Step 4: Simplify right side
    107,626.60x = 13,353,436,752.54
  5. Step 5: Solve for x
    x = 13,353,436,752.54/107,626.60
  6. Step 6: Final answer
    x = 124,071.90

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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.