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Finding the Fourth Proportional to 202,560.67, 279,539.36 and 111,922.47

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Solution

The fourth proportional to 202,560.67, 279,539.36 and 111,922.47 is: 154,456.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,560.67 : 279,539.36 = 111,922.47 : x
  2. Step 2: Convert to fraction form
    202,560.67/279,539.36 = 111,922.47/x
  3. Step 3: Cross multiply
    202,560.67x = 279,539.36 × 111,922.47
  4. Step 4: Simplify right side
    202,560.67x = 31,286,735,703.04
  5. Step 5: Solve for x
    x = 31,286,735,703.04/202,560.67
  6. Step 6: Final answer
    x = 154,456.12

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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.