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Finding the Fourth Proportional to 324,937.32, 487,218.36 and 100,237.42

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Solution

The fourth proportional to 324,937.32, 487,218.36 and 100,237.42 is: 150,298.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,937.32 : 487,218.36 = 100,237.42 : x
  2. Step 2: Convert to fraction form
    324,937.32/487,218.36 = 100,237.42/x
  3. Step 3: Cross multiply
    324,937.32x = 487,218.36 × 100,237.42
  4. Step 4: Simplify right side
    324,937.32x = 48,837,511,383.03
  5. Step 5: Solve for x
    x = 48,837,511,383.03/324,937.32
  6. Step 6: Final answer
    x = 150,298.25

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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.