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Finding the Fourth Proportional to 148,656.29, 205,078.70 and 88,229.48

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Solution

The fourth proportional to 148,656.29, 205,078.70 and 88,229.48 is: 121,716.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,656.29 : 205,078.70 = 88,229.48 : x
  2. Step 2: Convert to fraction form
    148,656.29/205,078.70 = 88,229.48/x
  3. Step 3: Cross multiply
    148,656.29x = 205,078.70 × 88,229.48
  4. Step 4: Simplify right side
    148,656.29x = 18,093,986,255.26
  5. Step 5: Solve for x
    x = 18,093,986,255.26/148,656.29
  6. Step 6: Final answer
    x = 121,716.93

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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.