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Finding the Fourth Proportional to 262,118.92, 361,722.18 and 154,689.16

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Solution

The fourth proportional to 262,118.92, 361,722.18 and 154,689.16 is: 213,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,118.92 : 361,722.18 = 154,689.16 : x
  2. Step 2: Convert to fraction form
    262,118.92/361,722.18 = 154,689.16/x
  3. Step 3: Cross multiply
    262,118.92x = 361,722.18 × 154,689.16
  4. Step 4: Simplify right side
    262,118.92x = 55,954,500,177.57
  5. Step 5: Solve for x
    x = 55,954,500,177.57/262,118.92
  6. Step 6: Final answer
    x = 213,469.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.