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Finding the Fourth Proportional to 79,456.84, 119,159.94 and 26,136.61

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Solution

The fourth proportional to 79,456.84, 119,159.94 and 26,136.61 is: 39,196.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,456.84 : 119,159.94 = 26,136.61 : x
  2. Step 2: Convert to fraction form
    79,456.84/119,159.94 = 26,136.61/x
  3. Step 3: Cross multiply
    79,456.84x = 119,159.94 × 26,136.61
  4. Step 4: Simplify right side
    79,456.84x = 3,114,436,879.40
  5. Step 5: Solve for x
    x = 3,114,436,879.40/79,456.84
  6. Step 6: Final answer
    x = 39,196.59

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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.