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Finding the Fourth Proportional to 136,791.48, 205,259.44 and 97,067.12

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Solution

The fourth proportional to 136,791.48, 205,259.44 and 97,067.12 is: 145,651.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,791.48 : 205,259.44 = 97,067.12 : x
  2. Step 2: Convert to fraction form
    136,791.48/205,259.44 = 97,067.12/x
  3. Step 3: Cross multiply
    136,791.48x = 205,259.44 × 97,067.12
  4. Step 4: Simplify right side
    136,791.48x = 19,923,942,693.61
  5. Step 5: Solve for x
    x = 19,923,942,693.61/136,791.48
  6. Step 6: Final answer
    x = 145,651.93

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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.