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Finding the Fourth Proportional to 68,769.16, 103,086.78 and 35,526.76

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Solution

The fourth proportional to 68,769.16, 103,086.78 and 35,526.76 is: 53,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,769.16 : 103,086.78 = 35,526.76 : x
  2. Step 2: Convert to fraction form
    68,769.16/103,086.78 = 35,526.76/x
  3. Step 3: Cross multiply
    68,769.16x = 103,086.78 × 35,526.76
  4. Step 4: Simplify right side
    68,769.16x = 3,662,339,292.23
  5. Step 5: Solve for x
    x = 3,662,339,292.23/68,769.16
  6. Step 6: Final answer
    x = 53,255.55

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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.