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Finding the Fourth Proportional to 269,278.95, 403,794.26 and 79,671.52

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Solution

The fourth proportional to 269,278.95, 403,794.26 and 79,671.52 is: 119,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,278.95 : 403,794.26 = 79,671.52 : x
  2. Step 2: Convert to fraction form
    269,278.95/403,794.26 = 79,671.52/x
  3. Step 3: Cross multiply
    269,278.95x = 403,794.26 × 79,671.52
  4. Step 4: Simplify right side
    269,278.95x = 32,170,902,461.48
  5. Step 5: Solve for x
    x = 32,170,902,461.48/269,278.95
  6. Step 6: Final answer
    x = 119,470.54

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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.