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Finding the Fourth Proportional to 68,763.90, 103,121.55 and 24,392.10

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Solution

The fourth proportional to 68,763.90, 103,121.55 and 24,392.10 is: 36,579.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,763.90 : 103,121.55 = 24,392.10 : x
  2. Step 2: Convert to fraction form
    68,763.90/103,121.55 = 24,392.10/x
  3. Step 3: Cross multiply
    68,763.90x = 103,121.55 × 24,392.10
  4. Step 4: Simplify right side
    68,763.90x = 2,515,351,159.76
  5. Step 5: Solve for x
    x = 2,515,351,159.76/68,763.90
  6. Step 6: Final answer
    x = 36,579.53

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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.