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Finding the Fourth Proportional to 69,148.84, 103,639.02 and 35,850.55

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Solution

The fourth proportional to 69,148.84, 103,639.02 and 35,850.55 is: 53,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,148.84 : 103,639.02 = 35,850.55 : x
  2. Step 2: Convert to fraction form
    69,148.84/103,639.02 = 35,850.55/x
  3. Step 3: Cross multiply
    69,148.84x = 103,639.02 × 35,850.55
  4. Step 4: Simplify right side
    69,148.84x = 3,715,515,868.46
  5. Step 5: Solve for x
    x = 3,715,515,868.46/69,148.84
  6. Step 6: Final answer
    x = 53,732.15

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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.