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Finding the Fourth Proportional to 324,703.22, 487,100.54 and 100,081.76

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Solution

The fourth proportional to 324,703.22, 487,100.54 and 100,081.76 is: 150,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,703.22 : 487,100.54 = 100,081.76 : x
  2. Step 2: Convert to fraction form
    324,703.22/487,100.54 = 100,081.76/x
  3. Step 3: Cross multiply
    324,703.22x = 487,100.54 × 100,081.76
  4. Step 4: Simplify right side
    324,703.22x = 48,749,877,154.85
  5. Step 5: Solve for x
    x = 48,749,877,154.85/324,703.22
  6. Step 6: Final answer
    x = 150,136.72

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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.