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Finding the Fourth Proportional to 322,136.64, 483,292.56 and 111,790.98

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Solution

The fourth proportional to 322,136.64, 483,292.56 and 111,790.98 is: 167,716.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,136.64 : 483,292.56 = 111,790.98 : x
  2. Step 2: Convert to fraction form
    322,136.64/483,292.56 = 111,790.98/x
  3. Step 3: Cross multiply
    322,136.64x = 483,292.56 × 111,790.98
  4. Step 4: Simplify right side
    322,136.64x = 54,027,748,909.11
  5. Step 5: Solve for x
    x = 54,027,748,909.11/322,136.64
  6. Step 6: Final answer
    x = 167,716.87

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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.