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Finding the Fourth Proportional to 267,686.84, 400,994.92 and 161,011.88

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Solution

The fourth proportional to 267,686.84, 400,994.92 and 161,011.88 is: 241,195.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,686.84 : 400,994.92 = 161,011.88 : x
  2. Step 2: Convert to fraction form
    267,686.84/400,994.92 = 161,011.88/x
  3. Step 3: Cross multiply
    267,686.84x = 400,994.92 × 161,011.88
  4. Step 4: Simplify right side
    267,686.84x = 64,564,945,939.65
  5. Step 5: Solve for x
    x = 64,564,945,939.65/267,686.84
  6. Step 6: Final answer
    x = 241,195.82

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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.