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Finding the Fourth Proportional to 79,115.72, 118,648.78 and 22,959.70

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Solution

The fourth proportional to 79,115.72, 118,648.78 and 22,959.70 is: 34,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,115.72 : 118,648.78 = 22,959.70 : x
  2. Step 2: Convert to fraction form
    79,115.72/118,648.78 = 22,959.70/x
  3. Step 3: Cross multiply
    79,115.72x = 118,648.78 × 22,959.70
  4. Step 4: Simplify right side
    79,115.72x = 2,724,140,040.14
  5. Step 5: Solve for x
    x = 2,724,140,040.14/79,115.72
  6. Step 6: Final answer
    x = 34,432.35

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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.