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Finding the Fourth Proportional to 79,721.80, 119,603.26 and 29,802.27

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Solution

The fourth proportional to 79,721.80, 119,603.26 and 29,802.27 is: 44,711.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,721.80 : 119,603.26 = 29,802.27 : x
  2. Step 2: Convert to fraction form
    79,721.80/119,603.26 = 29,802.27/x
  3. Step 3: Cross multiply
    79,721.80x = 119,603.26 × 29,802.27
  4. Step 4: Simplify right side
    79,721.80x = 3,564,448,572.89
  5. Step 5: Solve for x
    x = 3,564,448,572.89/79,721.80
  6. Step 6: Final answer
    x = 44,711.09

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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.