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Finding the Fourth Proportional to 279,184.66, 418,607.87 and 125,282.43

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Solution

The fourth proportional to 279,184.66, 418,607.87 and 125,282.43 is: 187,847.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,184.66 : 418,607.87 = 125,282.43 : x
  2. Step 2: Convert to fraction form
    279,184.66/418,607.87 = 125,282.43/x
  3. Step 3: Cross multiply
    279,184.66x = 418,607.87 × 125,282.43
  4. Step 4: Simplify right side
    279,184.66x = 52,444,210,321.98
  5. Step 5: Solve for x
    x = 52,444,210,321.98/279,184.66
  6. Step 6: Final answer
    x = 187,847.75

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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.