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Finding the Fourth Proportional to 103,616.10, 155,506.17 and 40,466.48

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Solution

The fourth proportional to 103,616.10, 155,506.17 and 40,466.48 is: 60,731.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,616.10 : 155,506.17 = 40,466.48 : x
  2. Step 2: Convert to fraction form
    103,616.10/155,506.17 = 40,466.48/x
  3. Step 3: Cross multiply
    103,616.10x = 155,506.17 × 40,466.48
  4. Step 4: Simplify right side
    103,616.10x = 6,292,786,540.65
  5. Step 5: Solve for x
    x = 6,292,786,540.65/103,616.10
  6. Step 6: Final answer
    x = 60,731.74

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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.