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Finding the Fourth Proportional to 125,216.30, 187,836.03 and 45,274.25

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Solution

The fourth proportional to 125,216.30, 187,836.03 and 45,274.25 is: 67,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,216.30 : 187,836.03 = 45,274.25 : x
  2. Step 2: Convert to fraction form
    125,216.30/187,836.03 = 45,274.25/x
  3. Step 3: Cross multiply
    125,216.30x = 187,836.03 × 45,274.25
  4. Step 4: Simplify right side
    125,216.30x = 8,504,134,442.05
  5. Step 5: Solve for x
    x = 8,504,134,442.05/125,216.30
  6. Step 6: Final answer
    x = 67,915.56

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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.