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Finding the Fourth Proportional to 279,184.01, 418,607.28 and 125,281.91

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Solution

The fourth proportional to 279,184.01, 418,607.28 and 125,281.91 is: 187,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,184.01 : 418,607.28 = 125,281.91 : x
  2. Step 2: Convert to fraction form
    279,184.01/418,607.28 = 125,281.91/x
  3. Step 3: Cross multiply
    279,184.01x = 418,607.28 × 125,281.91
  4. Step 4: Simplify right side
    279,184.01x = 52,443,917,485.27
  5. Step 5: Solve for x
    x = 52,443,917,485.27/279,184.01
  6. Step 6: Final answer
    x = 187,847.14

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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.