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Finding the Fourth Proportional to 122,593.79, 169,174.73 and 68,881.07

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Solution

The fourth proportional to 122,593.79, 169,174.73 and 68,881.07 is: 95,053.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,593.79 : 169,174.73 = 68,881.07 : x
  2. Step 2: Convert to fraction form
    122,593.79/169,174.73 = 68,881.07/x
  3. Step 3: Cross multiply
    122,593.79x = 169,174.73 × 68,881.07
  4. Step 4: Simplify right side
    122,593.79x = 11,652,935,229.08
  5. Step 5: Solve for x
    x = 11,652,935,229.08/122,593.79
  6. Step 6: Final answer
    x = 95,053.23

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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.