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Finding the Fourth Proportional to 218,358.18, 327,541.32 and 68,595.66

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Solution

The fourth proportional to 218,358.18, 327,541.32 and 68,595.66 is: 102,894.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,358.18 : 327,541.32 = 68,595.66 : x
  2. Step 2: Convert to fraction form
    218,358.18/327,541.32 = 68,595.66/x
  3. Step 3: Cross multiply
    218,358.18x = 327,541.32 × 68,595.66
  4. Step 4: Simplify right side
    218,358.18x = 22,467,913,022.67
  5. Step 5: Solve for x
    x = 22,467,913,022.67/218,358.18
  6. Step 6: Final answer
    x = 102,894.76

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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.