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Finding the Fourth Proportional to 68,863.68, 103,307.64 and 35,574.48

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Solution

The fourth proportional to 68,863.68, 103,307.64 and 35,574.48 is: 53,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,863.68 : 103,307.64 = 35,574.48 : x
  2. Step 2: Convert to fraction form
    68,863.68/103,307.64 = 35,574.48/x
  3. Step 3: Cross multiply
    68,863.68x = 103,307.64 × 35,574.48
  4. Step 4: Simplify right side
    68,863.68x = 3,675,115,573.03
  5. Step 5: Solve for x
    x = 3,675,115,573.03/68,863.68
  6. Step 6: Final answer
    x = 53,367.98

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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.