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Finding the Fourth Proportional to 123,154.49, 184,800.92 and 66,998.52

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Solution

The fourth proportional to 123,154.49, 184,800.92 and 66,998.52 is: 100,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,154.49 : 184,800.92 = 66,998.52 : x
  2. Step 2: Convert to fraction form
    123,154.49/184,800.92 = 66,998.52/x
  3. Step 3: Cross multiply
    123,154.49x = 184,800.92 × 66,998.52
  4. Step 4: Simplify right side
    123,154.49x = 12,381,387,799.65
  5. Step 5: Solve for x
    x = 12,381,387,799.65/123,154.49
  6. Step 6: Final answer
    x = 100,535.42

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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.