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Finding the Fourth Proportional to 202,298.94, 279,171.12 and 111,654.90

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Solution

The fourth proportional to 202,298.94, 279,171.12 and 111,654.90 is: 154,082.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,298.94 : 279,171.12 = 111,654.90 : x
  2. Step 2: Convert to fraction form
    202,298.94/279,171.12 = 111,654.90/x
  3. Step 3: Cross multiply
    202,298.94x = 279,171.12 × 111,654.90
  4. Step 4: Simplify right side
    202,298.94x = 31,170,823,486.49
  5. Step 5: Solve for x
    x = 31,170,823,486.49/202,298.94
  6. Step 6: Final answer
    x = 154,082.98

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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.