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Finding the Fourth Proportional to 269,871.21, 404,808.21 and 112,099.83

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Solution

The fourth proportional to 269,871.21, 404,808.21 and 112,099.83 is: 168,150.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,871.21 : 404,808.21 = 112,099.83 : x
  2. Step 2: Convert to fraction form
    269,871.21/404,808.21 = 112,099.83/x
  3. Step 3: Cross multiply
    269,871.21x = 404,808.21 × 112,099.83
  4. Step 4: Simplify right side
    269,871.21x = 45,378,931,523.60
  5. Step 5: Solve for x
    x = 45,378,931,523.60/269,871.21
  6. Step 6: Final answer
    x = 168,150.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.