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Finding the Fourth Proportional to 61,351.20, 91,897.20 and 50,983.20

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Solution

The fourth proportional to 61,351.20, 91,897.20 and 50,983.20 is: 76,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,351.20 : 91,897.20 = 50,983.20 : x
  2. Step 2: Convert to fraction form
    61,351.20/91,897.20 = 50,983.20/x
  3. Step 3: Cross multiply
    61,351.20x = 91,897.20 × 50,983.20
  4. Step 4: Simplify right side
    61,351.20x = 4,685,213,327.04
  5. Step 5: Solve for x
    x = 4,685,213,327.04/61,351.20
  6. Step 6: Final answer
    x = 76,367.10

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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.