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Finding the Fourth Proportional to 161,212.70, 241,732.65 and 67,612.70

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Solution

The fourth proportional to 161,212.70, 241,732.65 and 67,612.70 is: 101,382.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,212.70 : 241,732.65 = 67,612.70 : x
  2. Step 2: Convert to fraction form
    161,212.70/241,732.65 = 67,612.70/x
  3. Step 3: Cross multiply
    161,212.70x = 241,732.65 × 67,612.70
  4. Step 4: Simplify right side
    161,212.70x = 16,344,197,144.66
  5. Step 5: Solve for x
    x = 16,344,197,144.66/161,212.70
  6. Step 6: Final answer
    x = 101,382.81

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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.