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Finding the Fourth Proportional to 79,175.84, 118,767.83 and 20,012.01

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Solution

The fourth proportional to 79,175.84, 118,767.83 and 20,012.01 is: 30,019.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,175.84 : 118,767.83 = 20,012.01 : x
  2. Step 2: Convert to fraction form
    79,175.84/118,767.83 = 20,012.01/x
  3. Step 3: Cross multiply
    79,175.84x = 118,767.83 × 20,012.01
  4. Step 4: Simplify right side
    79,175.84x = 2,376,782,901.58
  5. Step 5: Solve for x
    x = 2,376,782,901.58/79,175.84
  6. Step 6: Final answer
    x = 30,019.04

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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.