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Finding the Fourth Proportional to 641,356.85, 962,184.99 and 185,957.61

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Solution

The fourth proportional to 641,356.85, 962,184.99 and 185,957.61 is: 278,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,356.85 : 962,184.99 = 185,957.61 : x
  2. Step 2: Convert to fraction form
    641,356.85/962,184.99 = 185,957.61/x
  3. Step 3: Cross multiply
    641,356.85x = 962,184.99 × 185,957.61
  4. Step 4: Simplify right side
    641,356.85x = 178,925,618,207.42
  5. Step 5: Solve for x
    x = 178,925,618,207.42/641,356.85
  6. Step 6: Final answer
    x = 278,979.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.