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Finding the Fourth Proportional to 367,720.85, 507,399.54 and 206,545.03

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Solution

The fourth proportional to 367,720.85, 507,399.54 and 206,545.03 is: 285,001.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,720.85 : 507,399.54 = 206,545.03 : x
  2. Step 2: Convert to fraction form
    367,720.85/507,399.54 = 206,545.03/x
  3. Step 3: Cross multiply
    367,720.85x = 507,399.54 × 206,545.03
  4. Step 4: Simplify right side
    367,720.85x = 104,800,851,942.79
  5. Step 5: Solve for x
    x = 104,800,851,942.79/367,720.85
  6. Step 6: Final answer
    x = 285,001.11

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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.