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Finding the Fourth Proportional to 251,695.20, 377,542.80 and 93,915.30

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Solution

The fourth proportional to 251,695.20, 377,542.80 and 93,915.30 is: 140,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,695.20 : 377,542.80 = 93,915.30 : x
  2. Step 2: Convert to fraction form
    251,695.20/377,542.80 = 93,915.30/x
  3. Step 3: Cross multiply
    251,695.20x = 377,542.80 × 93,915.30
  4. Step 4: Simplify right side
    251,695.20x = 35,457,045,324.84
  5. Step 5: Solve for x
    x = 35,457,045,324.84/251,695.20
  6. Step 6: Final answer
    x = 140,872.95

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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.