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Finding the Fourth Proportional to 73,920.78, 102,014.91 and 45,626.94

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Solution

The fourth proportional to 73,920.78, 102,014.91 and 45,626.94 is: 62,967.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,920.78 : 102,014.91 = 45,626.94 : x
  2. Step 2: Convert to fraction form
    73,920.78/102,014.91 = 45,626.94/x
  3. Step 3: Cross multiply
    73,920.78x = 102,014.91 × 45,626.94
  4. Step 4: Simplify right side
    73,920.78x = 4,654,628,177.68
  5. Step 5: Solve for x
    x = 4,654,628,177.68/73,920.78
  6. Step 6: Final answer
    x = 62,967.79

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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.