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Finding the Fourth Proportional to 251,100.65, 376,554.57 and 106,915.05

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Solution

The fourth proportional to 251,100.65, 376,554.57 and 106,915.05 is: 160,331.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,100.65 : 376,554.57 = 106,915.05 : x
  2. Step 2: Convert to fraction form
    251,100.65/376,554.57 = 106,915.05/x
  3. Step 3: Cross multiply
    251,100.65x = 376,554.57 × 106,915.05
  4. Step 4: Simplify right side
    251,100.65x = 40,259,350,679.28
  5. Step 5: Solve for x
    x = 40,259,350,679.28/251,100.65
  6. Step 6: Final answer
    x = 160,331.53

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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.