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Finding the Fourth Proportional to 206,282.50, 284,669.85 and 116,858.50

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Solution

The fourth proportional to 206,282.50, 284,669.85 and 116,858.50 is: 161,264.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,282.50 : 284,669.85 = 116,858.50 : x
  2. Step 2: Convert to fraction form
    206,282.50/284,669.85 = 116,858.50/x
  3. Step 3: Cross multiply
    206,282.50x = 284,669.85 × 116,858.50
  4. Step 4: Simplify right side
    206,282.50x = 33,266,091,666.23
  5. Step 5: Solve for x
    x = 33,266,091,666.23/206,282.50
  6. Step 6: Final answer
    x = 161,264.73

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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.