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Finding the Fourth Proportional to 324,506.38, 486,805.66 and 99,885.52

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Solution

The fourth proportional to 324,506.38, 486,805.66 and 99,885.52 is: 149,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,506.38 : 486,805.66 = 99,885.52 : x
  2. Step 2: Convert to fraction form
    324,506.38/486,805.66 = 99,885.52/x
  3. Step 3: Cross multiply
    324,506.38x = 486,805.66 × 99,885.52
  4. Step 4: Simplify right side
    324,506.38x = 48,624,836,488.04
  5. Step 5: Solve for x
    x = 48,624,836,488.04/324,506.38
  6. Step 6: Final answer
    x = 149,842.47

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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.