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Finding the Fourth Proportional to 148,357.95, 204,734.40 and 80,374.62

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Solution

The fourth proportional to 148,357.95, 204,734.40 and 80,374.62 is: 110,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,357.95 : 204,734.40 = 80,374.62 : x
  2. Step 2: Convert to fraction form
    148,357.95/204,734.40 = 80,374.62/x
  3. Step 3: Cross multiply
    148,357.95x = 204,734.40 × 80,374.62
  4. Step 4: Simplify right side
    148,357.95x = 16,455,449,600.93
  5. Step 5: Solve for x
    x = 16,455,449,600.93/148,357.95
  6. Step 6: Final answer
    x = 110,917.21

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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.