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Finding the Fourth Proportional to 568,487.70, 852,665.40 and 147,796.38

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Solution

The fourth proportional to 568,487.70, 852,665.40 and 147,796.38 is: 221,677.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,487.70 : 852,665.40 = 147,796.38 : x
  2. Step 2: Convert to fraction form
    568,487.70/852,665.40 = 147,796.38/x
  3. Step 3: Cross multiply
    568,487.70x = 852,665.40 × 147,796.38
  4. Step 4: Simplify right side
    568,487.70x = 126,020,859,471.25
  5. Step 5: Solve for x
    x = 126,020,859,471.25/568,487.70
  6. Step 6: Final answer
    x = 221,677.37

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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.