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Finding the Fourth Proportional to 324,694.71, 487,090.46 and 100,036.35

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Solution

The fourth proportional to 324,694.71, 487,090.46 and 100,036.35 is: 150,069.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,694.71 : 487,090.46 = 100,036.35 : x
  2. Step 2: Convert to fraction form
    324,694.71/487,090.46 = 100,036.35/x
  3. Step 3: Cross multiply
    324,694.71x = 487,090.46 × 100,036.35
  4. Step 4: Simplify right side
    324,694.71x = 48,726,751,988.31
  5. Step 5: Solve for x
    x = 48,726,751,988.31/324,694.71
  6. Step 6: Final answer
    x = 150,069.44

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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.