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Finding the Fourth Proportional to 324,412.58, 486,257.52 and 134,767.28

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Solution

The fourth proportional to 324,412.58, 486,257.52 and 134,767.28 is: 202,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,412.58 : 486,257.52 = 134,767.28 : x
  2. Step 2: Convert to fraction form
    324,412.58/486,257.52 = 134,767.28/x
  3. Step 3: Cross multiply
    324,412.58x = 486,257.52 × 134,767.28
  4. Step 4: Simplify right side
    324,412.58x = 65,531,603,349.95
  5. Step 5: Solve for x
    x = 65,531,603,349.95/324,412.58
  6. Step 6: Final answer
    x = 202,000.81

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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.