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Finding the Fourth Proportional to 71,119.16, 106,731.24 and 33,679.18

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Solution

The fourth proportional to 71,119.16, 106,731.24 and 33,679.18 is: 50,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,119.16 : 106,731.24 = 33,679.18 : x
  2. Step 2: Convert to fraction form
    71,119.16/106,731.24 = 33,679.18/x
  3. Step 3: Cross multiply
    71,119.16x = 106,731.24 × 33,679.18
  4. Step 4: Simplify right side
    71,119.16x = 3,594,620,194.12
  5. Step 5: Solve for x
    x = 3,594,620,194.12/71,119.16
  6. Step 6: Final answer
    x = 50,543.62

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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.