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Finding the Fourth Proportional to 91,179.77, 125,894.74 and 58,933.47

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Solution

The fourth proportional to 91,179.77, 125,894.74 and 58,933.47 is: 81,371.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,179.77 : 125,894.74 = 58,933.47 : x
  2. Step 2: Convert to fraction form
    91,179.77/125,894.74 = 58,933.47/x
  3. Step 3: Cross multiply
    91,179.77x = 125,894.74 × 58,933.47
  4. Step 4: Simplify right side
    91,179.77x = 7,419,413,735.61
  5. Step 5: Solve for x
    x = 7,419,413,735.61/91,179.77
  6. Step 6: Final answer
    x = 81,371.27

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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.