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Finding the Fourth Proportional to 367,987.06, 507,836.52 and 206,841.64

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Solution

The fourth proportional to 367,987.06, 507,836.52 and 206,841.64 is: 285,449.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,987.06 : 507,836.52 = 206,841.64 : x
  2. Step 2: Convert to fraction form
    367,987.06/507,836.52 = 206,841.64/x
  3. Step 3: Cross multiply
    367,987.06x = 507,836.52 × 206,841.64
  4. Step 4: Simplify right side
    367,987.06x = 105,041,738,648.69
  5. Step 5: Solve for x
    x = 105,041,738,648.69/367,987.06
  6. Step 6: Final answer
    x = 285,449.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.