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Finding the Fourth Proportional to 72,882.72, 100,564.80 and 41,044.80

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Solution

The fourth proportional to 72,882.72, 100,564.80 and 41,044.80 is: 56,634.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,882.72 : 100,564.80 = 41,044.80 : x
  2. Step 2: Convert to fraction form
    72,882.72/100,564.80 = 41,044.80/x
  3. Step 3: Cross multiply
    72,882.72x = 100,564.80 × 41,044.80
  4. Step 4: Simplify right side
    72,882.72x = 4,127,662,103.04
  5. Step 5: Solve for x
    x = 4,127,662,103.04/72,882.72
  6. Step 6: Final answer
    x = 56,634.30

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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.