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Finding the Fourth Proportional to 148,374.25, 204,756.19 and 80,392.95

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Solution

The fourth proportional to 148,374.25, 204,756.19 and 80,392.95 is: 110,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,374.25 : 204,756.19 = 80,392.95 : x
  2. Step 2: Convert to fraction form
    148,374.25/204,756.19 = 80,392.95/x
  3. Step 3: Cross multiply
    148,374.25x = 204,756.19 × 80,392.95
  4. Step 4: Simplify right side
    148,374.25x = 16,460,953,943.88
  5. Step 5: Solve for x
    x = 16,460,953,943.88/148,374.25
  6. Step 6: Final answer
    x = 110,942.12

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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.