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Finding the Fourth Proportional to 162,247.39, 243,523.70 and 82,342.71

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Solution

The fourth proportional to 162,247.39, 243,523.70 and 82,342.71 is: 123,591.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,247.39 : 243,523.70 = 82,342.71 : x
  2. Step 2: Convert to fraction form
    162,247.39/243,523.70 = 82,342.71/x
  3. Step 3: Cross multiply
    162,247.39x = 243,523.70 × 82,342.71
  4. Step 4: Simplify right side
    162,247.39x = 20,052,401,407.23
  5. Step 5: Solve for x
    x = 20,052,401,407.23/162,247.39
  6. Step 6: Final answer
    x = 123,591.52

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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.