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Finding the Fourth Proportional to 148,675.40, 205,164.52 and 88,248.68

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Solution

The fourth proportional to 148,675.40, 205,164.52 and 88,248.68 is: 121,778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,675.40 : 205,164.52 = 88,248.68 : x
  2. Step 2: Convert to fraction form
    148,675.40/205,164.52 = 88,248.68/x
  3. Step 3: Cross multiply
    148,675.40x = 205,164.52 × 88,248.68
  4. Step 4: Simplify right side
    148,675.40x = 18,105,498,072.83
  5. Step 5: Solve for x
    x = 18,105,498,072.83/148,675.40
  6. Step 6: Final answer
    x = 121,778.71

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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.