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Finding the Fourth Proportional to 123,808.62, 185,818.97 and 122,876.71

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Solution

The fourth proportional to 123,808.62, 185,818.97 and 122,876.71 is: 184,420.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,808.62 : 185,818.97 = 122,876.71 : x
  2. Step 2: Convert to fraction form
    123,808.62/185,818.97 = 122,876.71/x
  3. Step 3: Cross multiply
    123,808.62x = 185,818.97 × 122,876.71
  4. Step 4: Simplify right side
    123,808.62x = 22,832,823,689.19
  5. Step 5: Solve for x
    x = 22,832,823,689.19/123,808.62
  6. Step 6: Final answer
    x = 184,420.31

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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.