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Finding the Fourth Proportional to 206,708.01, 285,239.61 and 125,066.67

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Solution

The fourth proportional to 206,708.01, 285,239.61 and 125,066.67 is: 172,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,708.01 : 285,239.61 = 125,066.67 : x
  2. Step 2: Convert to fraction form
    206,708.01/285,239.61 = 125,066.67/x
  3. Step 3: Cross multiply
    206,708.01x = 285,239.61 × 125,066.67
  4. Step 4: Simplify right side
    206,708.01x = 35,673,968,174.80
  5. Step 5: Solve for x
    x = 35,673,968,174.80/206,708.01
  6. Step 6: Final answer
    x = 172,581.45

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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.