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Finding the Fourth Proportional to 159,881.22, 220,636.13 and 88,261.29

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Solution

The fourth proportional to 159,881.22, 220,636.13 and 88,261.29 is: 121,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,881.22 : 220,636.13 = 88,261.29 : x
  2. Step 2: Convert to fraction form
    159,881.22/220,636.13 = 88,261.29/x
  3. Step 3: Cross multiply
    159,881.22x = 220,636.13 × 88,261.29
  4. Step 4: Simplify right side
    159,881.22x = 19,473,629,013.10
  5. Step 5: Solve for x
    x = 19,473,629,013.10/159,881.22
  6. Step 6: Final answer
    x = 121,800.60

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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.