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Finding the Fourth Proportional to 297,332.25, 445,994.39 and 72,694.62

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Solution

The fourth proportional to 297,332.25, 445,994.39 and 72,694.62 is: 109,040.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,332.25 : 445,994.39 = 72,694.62 : x
  2. Step 2: Convert to fraction form
    297,332.25/445,994.39 = 72,694.62/x
  3. Step 3: Cross multiply
    297,332.25x = 445,994.39 × 72,694.62
  4. Step 4: Simplify right side
    297,332.25x = 32,421,392,476.01
  5. Step 5: Solve for x
    x = 32,421,392,476.01/297,332.25
  6. Step 6: Final answer
    x = 109,040.95

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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.