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Finding the Fourth Proportional to 568,703.34, 853,052.31 and 147,978.54

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Solution

The fourth proportional to 568,703.34, 853,052.31 and 147,978.54 is: 221,967.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,703.34 : 853,052.31 = 147,978.54 : x
  2. Step 2: Convert to fraction form
    568,703.34/853,052.31 = 147,978.54/x
  3. Step 3: Cross multiply
    568,703.34x = 853,052.31 × 147,978.54
  4. Step 4: Simplify right side
    568,703.34x = 126,233,435,377.43
  5. Step 5: Solve for x
    x = 126,233,435,377.43/568,703.34
  6. Step 6: Final answer
    x = 221,967.11

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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.