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Finding the Fourth Proportional to 45,493.40, 68,247.40 and 19,202.02

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Solution

The fourth proportional to 45,493.40, 68,247.40 and 19,202.02 is: 28,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,493.40 : 68,247.40 = 19,202.02 : x
  2. Step 2: Convert to fraction form
    45,493.40/68,247.40 = 19,202.02/x
  3. Step 3: Cross multiply
    45,493.40x = 68,247.40 × 19,202.02
  4. Step 4: Simplify right side
    45,493.40x = 1,310,487,939.75
  5. Step 5: Solve for x
    x = 1,310,487,939.75/45,493.40
  6. Step 6: Final answer
    x = 28,806.11

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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.