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Finding the Fourth Proportional to 79,143.07, 118,720.78 and 22,984.10

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Solution

The fourth proportional to 79,143.07, 118,720.78 and 22,984.10 is: 34,477.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,143.07 : 118,720.78 = 22,984.10 : x
  2. Step 2: Convert to fraction form
    79,143.07/118,720.78 = 22,984.10/x
  3. Step 3: Cross multiply
    79,143.07x = 118,720.78 × 22,984.10
  4. Step 4: Simplify right side
    79,143.07x = 2,728,690,279.60
  5. Step 5: Solve for x
    x = 2,728,690,279.60/79,143.07
  6. Step 6: Final answer
    x = 34,477.94

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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.