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Finding the Fourth Proportional to 140,806.89, 211,167.28 and 56,522.65

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Solution

The fourth proportional to 140,806.89, 211,167.28 and 56,522.65 is: 84,766.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,806.89 : 211,167.28 = 56,522.65 : x
  2. Step 2: Convert to fraction form
    140,806.89/211,167.28 = 56,522.65/x
  3. Step 3: Cross multiply
    140,806.89x = 211,167.28 × 56,522.65
  4. Step 4: Simplify right side
    140,806.89x = 11,935,734,258.89
  5. Step 5: Solve for x
    x = 11,935,734,258.89/140,806.89
  6. Step 6: Final answer
    x = 84,766.69

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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.