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Finding the Fourth Proportional to 79,136.01, 118,721.79 and 26,544.15

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Solution

The fourth proportional to 79,136.01, 118,721.79 and 26,544.15 is: 39,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,136.01 : 118,721.79 = 26,544.15 : x
  2. Step 2: Convert to fraction form
    79,136.01/118,721.79 = 26,544.15/x
  3. Step 3: Cross multiply
    79,136.01x = 118,721.79 × 26,544.15
  4. Step 4: Simplify right side
    79,136.01x = 3,151,369,002.03
  5. Step 5: Solve for x
    x = 3,151,369,002.03/79,136.01
  6. Step 6: Final answer
    x = 39,822.19

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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.