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Finding the Fourth Proportional to 101,015.73, 151,625.66 and 91,086.75

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Solution

The fourth proportional to 101,015.73, 151,625.66 and 91,086.75 is: 136,722.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,015.73 : 151,625.66 = 91,086.75 : x
  2. Step 2: Convert to fraction form
    101,015.73/151,625.66 = 91,086.75/x
  3. Step 3: Cross multiply
    101,015.73x = 151,625.66 × 91,086.75
  4. Step 4: Simplify right side
    101,015.73x = 13,811,088,130.57
  5. Step 5: Solve for x
    x = 13,811,088,130.57/101,015.73
  6. Step 6: Final answer
    x = 136,722.15

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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.