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Finding the Fourth Proportional to 140,551.74, 210,827.61 and 40,711.97

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Solution

The fourth proportional to 140,551.74, 210,827.61 and 40,711.97 is: 61,067.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,551.74 : 210,827.61 = 40,711.97 : x
  2. Step 2: Convert to fraction form
    140,551.74/210,827.61 = 40,711.97/x
  3. Step 3: Cross multiply
    140,551.74x = 210,827.61 × 40,711.97
  4. Step 4: Simplify right side
    140,551.74x = 8,583,206,674.66
  5. Step 5: Solve for x
    x = 8,583,206,674.66/140,551.74
  6. Step 6: Final answer
    x = 61,067.95

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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.