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Finding the Fourth Proportional to 123,594.55, 170,553.47 and 69,881.83

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Solution

The fourth proportional to 123,594.55, 170,553.47 and 69,881.83 is: 96,432.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,594.55 : 170,553.47 = 69,881.83 : x
  2. Step 2: Convert to fraction form
    123,594.55/170,553.47 = 69,881.83/x
  3. Step 3: Cross multiply
    123,594.55x = 170,553.47 × 69,881.83
  4. Step 4: Simplify right side
    123,594.55x = 11,918,587,820.66
  5. Step 5: Solve for x
    x = 11,918,587,820.66/123,594.55
  6. Step 6: Final answer
    x = 96,432.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.