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Finding the Fourth Proportional to 568,548.10, 852,818.67 and 142,081.73

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Solution

The fourth proportional to 568,548.10, 852,818.67 and 142,081.73 is: 213,121.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,548.10 : 852,818.67 = 142,081.73 : x
  2. Step 2: Convert to fraction form
    568,548.10/852,818.67 = 142,081.73/x
  3. Step 3: Cross multiply
    568,548.10x = 852,818.67 × 142,081.73
  4. Step 4: Simplify right side
    568,548.10x = 121,169,950,943.88
  5. Step 5: Solve for x
    x = 121,169,950,943.88/568,548.10
  6. Step 6: Final answer
    x = 213,121.72

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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.