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Finding the Fourth Proportional to 61,227.12, 91,837.42 and 19,102.38

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Solution

The fourth proportional to 61,227.12, 91,837.42 and 19,102.38 is: 28,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,227.12 : 91,837.42 = 19,102.38 : x
  2. Step 2: Convert to fraction form
    61,227.12/91,837.42 = 19,102.38/x
  3. Step 3: Cross multiply
    61,227.12x = 91,837.42 × 19,102.38
  4. Step 4: Simplify right side
    61,227.12x = 1,754,313,295.06
  5. Step 5: Solve for x
    x = 1,754,313,295.06/61,227.12
  6. Step 6: Final answer
    x = 28,652.55

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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.