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Finding the Fourth Proportional to 202,451.95, 279,383.69 and 117,574.48

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Solution

The fourth proportional to 202,451.95, 279,383.69 and 117,574.48 is: 162,252.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,451.95 : 279,383.69 = 117,574.48 : x
  2. Step 2: Convert to fraction form
    202,451.95/279,383.69 = 117,574.48/x
  3. Step 3: Cross multiply
    202,451.95x = 279,383.69 × 117,574.48
  4. Step 4: Simplify right side
    202,451.95x = 32,848,390,087.44
  5. Step 5: Solve for x
    x = 32,848,390,087.44/202,451.95
  6. Step 6: Final answer
    x = 162,252.78

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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.