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Finding the Fourth Proportional to 162,179.74, 243,165.65 and 67,475.62

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Solution

The fourth proportional to 162,179.74, 243,165.65 and 67,475.62 is: 101,170.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,179.74 : 243,165.65 = 67,475.62 : x
  2. Step 2: Convert to fraction form
    162,179.74/243,165.65 = 67,475.62/x
  3. Step 3: Cross multiply
    162,179.74x = 243,165.65 × 67,475.62
  4. Step 4: Simplify right side
    162,179.74x = 16,407,752,996.45
  5. Step 5: Solve for x
    x = 16,407,752,996.45/162,179.74
  6. Step 6: Final answer
    x = 101,170.18

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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.