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Finding the Fourth Proportional to 159,212.91, 238,622.52 and 80,349.69

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Solution

The fourth proportional to 159,212.91, 238,622.52 and 80,349.69 is: 120,425.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,212.91 : 238,622.52 = 80,349.69 : x
  2. Step 2: Convert to fraction form
    159,212.91/238,622.52 = 80,349.69/x
  3. Step 3: Cross multiply
    159,212.91x = 238,622.52 × 80,349.69
  4. Step 4: Simplify right side
    159,212.91x = 19,173,245,509.02
  5. Step 5: Solve for x
    x = 19,173,245,509.02/159,212.91
  6. Step 6: Final answer
    x = 120,425.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.