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Finding the Fourth Proportional to 107,791.08, 148,755.06 and 61,859.12

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Solution

The fourth proportional to 107,791.08, 148,755.06 and 61,859.12 is: 85,367.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,791.08 : 148,755.06 = 61,859.12 : x
  2. Step 2: Convert to fraction form
    107,791.08/148,755.06 = 61,859.12/x
  3. Step 3: Cross multiply
    107,791.08x = 148,755.06 × 61,859.12
  4. Step 4: Simplify right side
    107,791.08x = 9,201,856,363.37
  5. Step 5: Solve for x
    x = 9,201,856,363.37/107,791.08
  6. Step 6: Final answer
    x = 85,367.51

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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.