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Finding the Fourth Proportional to 279,375.17, 418,395.72 and 160,797.25

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Solution

The fourth proportional to 279,375.17, 418,395.72 and 160,797.25 is: 240,811.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,375.17 : 418,395.72 = 160,797.25 : x
  2. Step 2: Convert to fraction form
    279,375.17/418,395.72 = 160,797.25/x
  3. Step 3: Cross multiply
    279,375.17x = 418,395.72 × 160,797.25
  4. Step 4: Simplify right side
    279,375.17x = 67,276,879,095.79
  5. Step 5: Solve for x
    x = 67,276,879,095.79/279,375.17
  6. Step 6: Final answer
    x = 240,811.95

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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.