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Finding the Fourth Proportional to 159,169.56, 219,685.19 and 91,232.07

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Solution

The fourth proportional to 159,169.56, 219,685.19 and 91,232.07 is: 125,918.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,169.56 : 219,685.19 = 91,232.07 : x
  2. Step 2: Convert to fraction form
    159,169.56/219,685.19 = 91,232.07/x
  3. Step 3: Cross multiply
    159,169.56x = 219,685.19 × 91,232.07
  4. Step 4: Simplify right side
    159,169.56x = 20,042,334,632.04
  5. Step 5: Solve for x
    x = 20,042,334,632.04/159,169.56
  6. Step 6: Final answer
    x = 125,918.14

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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.