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Finding the Fourth Proportional to 170,893.73, 256,117.64 and 123,667.90

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Solution

The fourth proportional to 170,893.73, 256,117.64 and 123,667.90 is: 185,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,893.73 : 256,117.64 = 123,667.90 : x
  2. Step 2: Convert to fraction form
    170,893.73/256,117.64 = 123,667.90/x
  3. Step 3: Cross multiply
    170,893.73x = 256,117.64 × 123,667.90
  4. Step 4: Simplify right side
    170,893.73x = 31,673,530,691.76
  5. Step 5: Solve for x
    x = 31,673,530,691.76/170,893.73
  6. Step 6: Final answer
    x = 185,340.51

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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.