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Finding the Fourth Proportional to 123,125.76, 184,449.65 and 80,877.65

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Solution

The fourth proportional to 123,125.76, 184,449.65 and 80,877.65 is: 121,159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,125.76 : 184,449.65 = 80,877.65 : x
  2. Step 2: Convert to fraction form
    123,125.76/184,449.65 = 80,877.65/x
  3. Step 3: Cross multiply
    123,125.76x = 184,449.65 × 80,877.65
  4. Step 4: Simplify right side
    123,125.76x = 14,917,852,908.69
  5. Step 5: Solve for x
    x = 14,917,852,908.69/123,125.76
  6. Step 6: Final answer
    x = 121,159.48

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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.