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Finding the Fourth Proportional to 303,991.84, 455,976.78 and 93,624.40

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Solution

The fourth proportional to 303,991.84, 455,976.78 and 93,624.40 is: 140,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,991.84 : 455,976.78 = 93,624.40 : x
  2. Step 2: Convert to fraction form
    303,991.84/455,976.78 = 93,624.40/x
  3. Step 3: Cross multiply
    303,991.84x = 455,976.78 × 93,624.40
  4. Step 4: Simplify right side
    303,991.84x = 42,690,552,441.43
  5. Step 5: Solve for x
    x = 42,690,552,441.43/303,991.84
  6. Step 6: Final answer
    x = 140,433.22

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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.