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Finding the Fourth Proportional to 79,141.28, 118,718.04 and 22,982.28

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Solution

The fourth proportional to 79,141.28, 118,718.04 and 22,982.28 is: 34,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,141.28 : 118,718.04 = 22,982.28 : x
  2. Step 2: Convert to fraction form
    79,141.28/118,718.04 = 22,982.28/x
  3. Step 3: Cross multiply
    79,141.28x = 118,718.04 × 22,982.28
  4. Step 4: Simplify right side
    79,141.28x = 2,728,411,236.33
  5. Step 5: Solve for x
    x = 2,728,411,236.33/79,141.28
  6. Step 6: Final answer
    x = 34,475.20

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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.