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Finding the Fourth Proportional to 202,606.22, 279,595.51 and 111,968.48

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Solution

The fourth proportional to 202,606.22, 279,595.51 and 111,968.48 is: 154,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,606.22 : 279,595.51 = 111,968.48 : x
  2. Step 2: Convert to fraction form
    202,606.22/279,595.51 = 111,968.48/x
  3. Step 3: Cross multiply
    202,606.22x = 279,595.51 × 111,968.48
  4. Step 4: Simplify right side
    202,606.22x = 31,305,882,591.63
  5. Step 5: Solve for x
    x = 31,305,882,591.63/202,606.22
  6. Step 6: Final answer
    x = 154,515.90

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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.