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Finding the Fourth Proportional to 68,062.68, 102,121.56 and 30,596.54

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Solution

The fourth proportional to 68,062.68, 102,121.56 and 30,596.54 is: 45,907.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,062.68 : 102,121.56 = 30,596.54 : x
  2. Step 2: Convert to fraction form
    68,062.68/102,121.56 = 30,596.54/x
  3. Step 3: Cross multiply
    68,062.68x = 102,121.56 × 30,596.54
  4. Step 4: Simplify right side
    68,062.68x = 3,124,565,884.79
  5. Step 5: Solve for x
    x = 3,124,565,884.79/68,062.68
  6. Step 6: Final answer
    x = 45,907.18

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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.