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Finding the Fourth Proportional to 122,073.92, 168,479.06 and 88,192.02

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Solution

The fourth proportional to 122,073.92, 168,479.06 and 88,192.02 is: 121,717.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,073.92 : 168,479.06 = 88,192.02 : x
  2. Step 2: Convert to fraction form
    122,073.92/168,479.06 = 88,192.02/x
  3. Step 3: Cross multiply
    122,073.92x = 168,479.06 × 88,192.02
  4. Step 4: Simplify right side
    122,073.92x = 14,858,508,629.10
  5. Step 5: Solve for x
    x = 14,858,508,629.10/122,073.92
  6. Step 6: Final answer
    x = 121,717.31

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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.