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Finding the Fourth Proportional to 67,915.86, 101,898.08 and 34,644.30

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Solution

The fourth proportional to 67,915.86, 101,898.08 and 34,644.30 is: 51,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,915.86 : 101,898.08 = 34,644.30 : x
  2. Step 2: Convert to fraction form
    67,915.86/101,898.08 = 34,644.30/x
  3. Step 3: Cross multiply
    67,915.86x = 101,898.08 × 34,644.30
  4. Step 4: Simplify right side
    67,915.86x = 3,530,187,652.94
  5. Step 5: Solve for x
    x = 3,530,187,652.94/67,915.86
  6. Step 6: Final answer
    x = 51,978.84

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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.