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Finding the Fourth Proportional to 568,140.39, 852,063.84 and 168,690.78

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Solution

The fourth proportional to 568,140.39, 852,063.84 and 168,690.78 is: 252,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,140.39 : 852,063.84 = 168,690.78 : x
  2. Step 2: Convert to fraction form
    568,140.39/852,063.84 = 168,690.78/x
  3. Step 3: Cross multiply
    568,140.39x = 852,063.84 × 168,690.78
  4. Step 4: Simplify right side
    568,140.39x = 143,735,313,779.40
  5. Step 5: Solve for x
    x = 143,735,313,779.40/568,140.39
  6. Step 6: Final answer
    x = 252,992.60

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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.