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Finding the Fourth Proportional to 202,486.88, 279,431.89 and 113,062.88

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Solution

The fourth proportional to 202,486.88, 279,431.89 and 113,062.88 is: 156,026.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,486.88 : 279,431.89 = 113,062.88 : x
  2. Step 2: Convert to fraction form
    202,486.88/279,431.89 = 113,062.88/x
  3. Step 3: Cross multiply
    202,486.88x = 279,431.89 × 113,062.88
  4. Step 4: Simplify right side
    202,486.88x = 31,593,372,567.43
  5. Step 5: Solve for x
    x = 31,593,372,567.43/202,486.88
  6. Step 6: Final answer
    x = 156,026.77

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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.