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Finding the Fourth Proportional to 159,695.58, 220,393.14 and 91,725.67

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Solution

The fourth proportional to 159,695.58, 220,393.14 and 91,725.67 is: 126,589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,695.58 : 220,393.14 = 91,725.67 : x
  2. Step 2: Convert to fraction form
    159,695.58/220,393.14 = 91,725.67/x
  3. Step 3: Cross multiply
    159,695.58x = 220,393.14 × 91,725.67
  4. Step 4: Simplify right side
    159,695.58x = 20,215,708,429.90
  5. Step 5: Solve for x
    x = 20,215,708,429.90/159,695.58
  6. Step 6: Final answer
    x = 126,589.03

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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.