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Finding the Fourth Proportional to 568,279, 852,424.98 and 168,909.40

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Solution

The fourth proportional to 568,279, 852,424.98 and 168,909.40 is: 253,366.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,279 : 852,424.98 = 168,909.40 : x
  2. Step 2: Convert to fraction form
    568,279/852,424.98 = 168,909.40/x
  3. Step 3: Cross multiply
    568,279x = 852,424.98 × 168,909.40
  4. Step 4: Simplify right side
    568,279x = 143,982,591,916.81
  5. Step 5: Solve for x
    x = 143,982,591,916.81/568,279
  6. Step 6: Final answer
    x = 253,366.03

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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.