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Finding the Fourth Proportional to 68,785.74, 94,882.19 and 45,501.89

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Solution

The fourth proportional to 68,785.74, 94,882.19 and 45,501.89 is: 62,764.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,785.74 : 94,882.19 = 45,501.89 : x
  2. Step 2: Convert to fraction form
    68,785.74/94,882.19 = 45,501.89/x
  3. Step 3: Cross multiply
    68,785.74x = 94,882.19 × 45,501.89
  4. Step 4: Simplify right side
    68,785.74x = 4,317,318,270.42
  5. Step 5: Solve for x
    x = 4,317,318,270.42/68,785.74
  6. Step 6: Final answer
    x = 62,764.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.