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Finding the Fourth Proportional to 568,239.72, 852,137.98 and 213,060.20

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Solution

The fourth proportional to 568,239.72, 852,137.98 and 213,060.20 is: 319,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,239.72 : 852,137.98 = 213,060.20 : x
  2. Step 2: Convert to fraction form
    568,239.72/852,137.98 = 213,060.20/x
  3. Step 3: Cross multiply
    568,239.72x = 852,137.98 × 213,060.20
  4. Step 4: Simplify right side
    568,239.72x = 181,556,688,446.40
  5. Step 5: Solve for x
    x = 181,556,688,446.40/568,239.72
  6. Step 6: Final answer
    x = 319,507.21

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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.