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Finding the Fourth Proportional to 68,867.88, 103,357.17 and 35,597.69

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Solution

The fourth proportional to 68,867.88, 103,357.17 and 35,597.69 is: 53,425.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,867.88 : 103,357.17 = 35,597.69 : x
  2. Step 2: Convert to fraction form
    68,867.88/103,357.17 = 35,597.69/x
  3. Step 3: Cross multiply
    68,867.88x = 103,357.17 × 35,597.69
  4. Step 4: Simplify right side
    68,867.88x = 3,679,275,980.15
  5. Step 5: Solve for x
    x = 3,679,275,980.15/68,867.88
  6. Step 6: Final answer
    x = 53,425.14

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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.