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Finding the Fourth Proportional to 159,846.65, 220,585.01 and 87,247.14

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Solution

The fourth proportional to 159,846.65, 220,585.01 and 87,247.14 is: 120,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,846.65 : 220,585.01 = 87,247.14 : x
  2. Step 2: Convert to fraction form
    159,846.65/220,585.01 = 87,247.14/x
  3. Step 3: Cross multiply
    159,846.65x = 220,585.01 × 87,247.14
  4. Step 4: Simplify right side
    159,846.65x = 19,245,410,813.14
  5. Step 5: Solve for x
    x = 19,245,410,813.14/159,846.65
  6. Step 6: Final answer
    x = 120,399.22

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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.