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Finding the Fourth Proportional to 57,168.28, 78,895.04 and 34,506.91

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Solution

The fourth proportional to 57,168.28, 78,895.04 and 34,506.91 is: 47,621.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,168.28 : 78,895.04 = 34,506.91 : x
  2. Step 2: Convert to fraction form
    57,168.28/78,895.04 = 34,506.91/x
  3. Step 3: Cross multiply
    57,168.28x = 78,895.04 × 34,506.91
  4. Step 4: Simplify right side
    57,168.28x = 2,722,424,044.73
  5. Step 5: Solve for x
    x = 2,722,424,044.73/57,168.28
  6. Step 6: Final answer
    x = 47,621.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.