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Finding the Fourth Proportional to 568,046.10, 851,745.15 and 213,071.70

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Solution

The fourth proportional to 568,046.10, 851,745.15 and 213,071.70 is: 319,486.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,046.10 : 851,745.15 = 213,071.70 : x
  2. Step 2: Convert to fraction form
    568,046.10/851,745.15 = 213,071.70/x
  3. Step 3: Cross multiply
    568,046.10x = 851,745.15 × 213,071.70
  4. Step 4: Simplify right side
    568,046.10x = 181,482,787,077.26
  5. Step 5: Solve for x
    x = 181,482,787,077.26/568,046.10
  6. Step 6: Final answer
    x = 319,486.02

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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.