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Finding the Fourth Proportional to 161,212.20, 241,731.90 and 67,612.20

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Solution

The fourth proportional to 161,212.20, 241,731.90 and 67,612.20 is: 101,382.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,212.20 : 241,731.90 = 67,612.20 : x
  2. Step 2: Convert to fraction form
    161,212.20/241,731.90 = 67,612.20/x
  3. Step 3: Cross multiply
    161,212.20x = 241,731.90 × 67,612.20
  4. Step 4: Simplify right side
    161,212.20x = 16,344,025,569.18
  5. Step 5: Solve for x
    x = 16,344,025,569.18/161,212.20
  6. Step 6: Final answer
    x = 101,382.06

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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.