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Finding the Fourth Proportional to 68,222.66, 102,287.51 and 34,915.56

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Solution

The fourth proportional to 68,222.66, 102,287.51 and 34,915.56 is: 52,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,222.66 : 102,287.51 = 34,915.56 : x
  2. Step 2: Convert to fraction form
    68,222.66/102,287.51 = 34,915.56/x
  3. Step 3: Cross multiply
    68,222.66x = 102,287.51 × 34,915.56
  4. Step 4: Simplify right side
    68,222.66x = 3,571,425,265.43
  5. Step 5: Solve for x
    x = 3,571,425,265.43/68,222.66
  6. Step 6: Final answer
    x = 52,349.55

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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.