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Finding the Fourth Proportional to 527,366.18, 790,986.54 and 137,846.90

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Solution

The fourth proportional to 527,366.18, 790,986.54 and 137,846.90 is: 206,753.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,366.18 : 790,986.54 = 137,846.90 : x
  2. Step 2: Convert to fraction form
    527,366.18/790,986.54 = 137,846.90/x
  3. Step 3: Cross multiply
    527,366.18x = 790,986.54 × 137,846.90
  4. Step 4: Simplify right side
    527,366.18x = 109,035,042,480.73
  5. Step 5: Solve for x
    x = 109,035,042,480.73/527,366.18
  6. Step 6: Final answer
    x = 206,753.95

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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.