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Finding the Fourth Proportional to 158,593.75, 218,839.26 and 86,954.92

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Solution

The fourth proportional to 158,593.75, 218,839.26 and 86,954.92 is: 119,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,593.75 : 218,839.26 = 86,954.92 : x
  2. Step 2: Convert to fraction form
    158,593.75/218,839.26 = 86,954.92/x
  3. Step 3: Cross multiply
    158,593.75x = 218,839.26 × 86,954.92
  4. Step 4: Simplify right side
    158,593.75x = 19,029,150,346.16
  5. Step 5: Solve for x
    x = 19,029,150,346.16/158,593.75
  6. Step 6: Final answer
    x = 119,986.76

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1.5x scale

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.