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Finding the Fourth Proportional to 73,391.81, 110,131.45 and 26,648.33

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Solution

The fourth proportional to 73,391.81, 110,131.45 and 26,648.33 is: 39,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,391.81 : 110,131.45 = 26,648.33 : x
  2. Step 2: Convert to fraction form
    73,391.81/110,131.45 = 26,648.33/x
  3. Step 3: Cross multiply
    73,391.81x = 110,131.45 × 26,648.33
  4. Step 4: Simplify right side
    73,391.81x = 2,934,818,539.08
  5. Step 5: Solve for x
    x = 2,934,818,539.08/73,391.81
  6. Step 6: Final answer
    x = 39,988.37

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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.