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Finding the Fourth Proportional to 666,169.25, 999,262.38 and 192,855.07

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Solution

The fourth proportional to 666,169.25, 999,262.38 and 192,855.07 is: 289,285.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,169.25 : 999,262.38 = 192,855.07 : x
  2. Step 2: Convert to fraction form
    666,169.25/999,262.38 = 192,855.07/x
  3. Step 3: Cross multiply
    666,169.25x = 999,262.38 × 192,855.07
  4. Step 4: Simplify right side
    666,169.25x = 192,712,811,246.96
  5. Step 5: Solve for x
    x = 192,712,811,246.96/666,169.25
  6. Step 6: Final answer
    x = 289,285.06

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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.