Home / 206,534.11-309,776.56-56,789.62

Finding the Fourth Proportional to 206,534.11, 309,776.56 and 56,789.62

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Solution

The fourth proportional to 206,534.11, 309,776.56 and 56,789.62 is: 85,177.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,534.11 : 309,776.56 = 56,789.62 : x
  2. Step 2: Convert to fraction form
    206,534.11/309,776.56 = 56,789.62/x
  3. Step 3: Cross multiply
    206,534.11x = 309,776.56 × 56,789.62
  4. Step 4: Simplify right side
    206,534.11x = 17,592,093,127.31
  5. Step 5: Solve for x
    x = 17,592,093,127.31/206,534.11
  6. Step 6: Final answer
    x = 85,177.66

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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.