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Finding the Fourth Proportional to 71,057.86, 98,060.16 and 39,227.02

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Solution

The fourth proportional to 71,057.86, 98,060.16 and 39,227.02 is: 54,133.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,057.86 : 98,060.16 = 39,227.02 : x
  2. Step 2: Convert to fraction form
    71,057.86/98,060.16 = 39,227.02/x
  3. Step 3: Cross multiply
    71,057.86x = 98,060.16 × 39,227.02
  4. Step 4: Simplify right side
    71,057.86x = 3,846,607,857.52
  5. Step 5: Solve for x
    x = 3,846,607,857.52/71,057.86
  6. Step 6: Final answer
    x = 54,133.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.