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Finding the Fourth Proportional to 561,072.15, 841,976.51 and 206,089.11

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Solution

The fourth proportional to 561,072.15, 841,976.51 and 206,089.11 is: 309,268.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,072.15 : 841,976.51 = 206,089.11 : x
  2. Step 2: Convert to fraction form
    561,072.15/841,976.51 = 206,089.11/x
  3. Step 3: Cross multiply
    561,072.15x = 841,976.51 × 206,089.11
  4. Step 4: Simplify right side
    561,072.15x = 173,522,188,556.36
  5. Step 5: Solve for x
    x = 173,522,188,556.36/561,072.15
  6. Step 6: Final answer
    x = 309,268.94

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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.