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Finding the Fourth Proportional to 324,901.44, 487,417.13 and 100,253.43

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Solution

The fourth proportional to 324,901.44, 487,417.13 and 100,253.43 is: 150,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,901.44 : 487,417.13 = 100,253.43 : x
  2. Step 2: Convert to fraction form
    324,901.44/487,417.13 = 100,253.43/x
  3. Step 3: Cross multiply
    324,901.44x = 487,417.13 × 100,253.43
  4. Step 4: Simplify right side
    324,901.44x = 48,865,238,621.99
  5. Step 5: Solve for x
    x = 48,865,238,621.99/324,901.44
  6. Step 6: Final answer
    x = 150,400.19

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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.