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Finding the Fourth Proportional to 79,142.57, 118,720.03 and 22,983.60

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Solution

The fourth proportional to 79,142.57, 118,720.03 and 22,983.60 is: 34,477.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,142.57 : 118,720.03 = 22,983.60 : x
  2. Step 2: Convert to fraction form
    79,142.57/118,720.03 = 22,983.60/x
  3. Step 3: Cross multiply
    79,142.57x = 118,720.03 × 22,983.60
  4. Step 4: Simplify right side
    79,142.57x = 2,728,613,444.54
  5. Step 5: Solve for x
    x = 2,728,613,444.54/79,142.57
  6. Step 6: Final answer
    x = 34,477.19

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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.