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Finding the Fourth Proportional to 324,074.30, 485,698.35 and 181,919.30

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Solution

The fourth proportional to 324,074.30, 485,698.35 and 181,919.30 is: 272,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,074.30 : 485,698.35 = 181,919.30 : x
  2. Step 2: Convert to fraction form
    324,074.30/485,698.35 = 181,919.30/x
  3. Step 3: Cross multiply
    324,074.30x = 485,698.35 × 181,919.30
  4. Step 4: Simplify right side
    324,074.30x = 88,357,903,843.16
  5. Step 5: Solve for x
    x = 88,357,903,843.16/324,074.30
  6. Step 6: Final answer
    x = 272,647.06

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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.