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Finding the Fourth Proportional to 568,488.70, 852,666.90 and 147,797.38

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Solution

The fourth proportional to 568,488.70, 852,666.90 and 147,797.38 is: 221,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,488.70 : 852,666.90 = 147,797.38 : x
  2. Step 2: Convert to fraction form
    568,488.70/852,666.90 = 147,797.38/x
  3. Step 3: Cross multiply
    568,488.70x = 852,666.90 × 147,797.38
  4. Step 4: Simplify right side
    568,488.70x = 126,021,933,832.72
  5. Step 5: Solve for x
    x = 126,021,933,832.72/568,488.70
  6. Step 6: Final answer
    x = 221,678.87

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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.