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Finding the Fourth Proportional to 122,160.63, 168,552.12 and 81,859.68

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Solution

The fourth proportional to 122,160.63, 168,552.12 and 81,859.68 is: 112,946.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,160.63 : 168,552.12 = 81,859.68 : x
  2. Step 2: Convert to fraction form
    122,160.63/168,552.12 = 81,859.68/x
  3. Step 3: Cross multiply
    122,160.63x = 168,552.12 × 81,859.68
  4. Step 4: Simplify right side
    122,160.63x = 13,797,622,606.52
  5. Step 5: Solve for x
    x = 13,797,622,606.52/122,160.63
  6. Step 6: Final answer
    x = 112,946.56

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