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Finding the Fourth Proportional to 145,273.44, 217,922.70 and 40,092.40

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Solution

The fourth proportional to 145,273.44, 217,922.70 and 40,092.40 is: 60,142.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,273.44 : 217,922.70 = 40,092.40 : x
  2. Step 2: Convert to fraction form
    145,273.44/217,922.70 = 40,092.40/x
  3. Step 3: Cross multiply
    145,273.44x = 217,922.70 × 40,092.40
  4. Step 4: Simplify right side
    145,273.44x = 8,737,044,057.48
  5. Step 5: Solve for x
    x = 8,737,044,057.48/145,273.44
  6. Step 6: Final answer
    x = 60,142.06

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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.