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Finding the Fourth Proportional to 206,663.59, 310,110.20 and 111,892.38

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Solution

The fourth proportional to 206,663.59, 310,110.20 and 111,892.38 is: 167,900.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,663.59 : 310,110.20 = 111,892.38 : x
  2. Step 2: Convert to fraction form
    206,663.59/310,110.20 = 111,892.38/x
  3. Step 3: Cross multiply
    206,663.59x = 310,110.20 × 111,892.38
  4. Step 4: Simplify right side
    206,663.59x = 34,698,968,340.28
  5. Step 5: Solve for x
    x = 34,698,968,340.28/206,663.59
  6. Step 6: Final answer
    x = 167,900.73

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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.