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Finding the Fourth Proportional to 239,162.63, 358,760.34 and 79,238.25

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Solution

The fourth proportional to 239,162.63, 358,760.34 and 79,238.25 is: 118,862.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,162.63 : 358,760.34 = 79,238.25 : x
  2. Step 2: Convert to fraction form
    239,162.63/358,760.34 = 79,238.25/x
  3. Step 3: Cross multiply
    239,162.63x = 358,760.34 × 79,238.25
  4. Step 4: Simplify right side
    239,162.63x = 28,427,541,511.01
  5. Step 5: Solve for x
    x = 28,427,541,511.01/239,162.63
  6. Step 6: Final answer
    x = 118,862.81

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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.