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Finding the Fourth Proportional to 218,417.96, 327,626.70 and 68,671.34

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Solution

The fourth proportional to 218,417.96, 327,626.70 and 68,671.34 is: 103,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,417.96 : 327,626.70 = 68,671.34 : x
  2. Step 2: Convert to fraction form
    218,417.96/327,626.70 = 68,671.34/x
  3. Step 3: Cross multiply
    218,417.96x = 327,626.70 × 68,671.34
  4. Step 4: Simplify right side
    218,417.96x = 22,498,564,508.78
  5. Step 5: Solve for x
    x = 22,498,564,508.78/218,417.96
  6. Step 6: Final answer
    x = 103,006.93

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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.