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Finding the Fourth Proportional to 279,312.64, 419,034.58 and 92,324.14

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Solution

The fourth proportional to 279,312.64, 419,034.58 and 92,324.14 is: 138,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,312.64 : 419,034.58 = 92,324.14 : x
  2. Step 2: Convert to fraction form
    279,312.64/419,034.58 = 92,324.14/x
  3. Step 3: Cross multiply
    279,312.64x = 419,034.58 × 92,324.14
  4. Step 4: Simplify right side
    279,312.64x = 38,687,007,228.76
  5. Step 5: Solve for x
    x = 38,687,007,228.76/279,312.64
  6. Step 6: Final answer
    x = 138,507.90

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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.