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Finding the Fourth Proportional to 115,334.87, 159,227.51 and 75,028.46

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Solution

The fourth proportional to 115,334.87, 159,227.51 and 75,028.46 is: 103,581.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,334.87 : 159,227.51 = 75,028.46 : x
  2. Step 2: Convert to fraction form
    115,334.87/159,227.51 = 75,028.46/x
  3. Step 3: Cross multiply
    115,334.87x = 159,227.51 × 75,028.46
  4. Step 4: Simplify right side
    115,334.87x = 11,946,593,693.65
  5. Step 5: Solve for x
    x = 11,946,593,693.65/115,334.87
  6. Step 6: Final answer
    x = 103,581.81

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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.