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Finding the Fourth Proportional to 298,392.12, 447,583.78 and 73,752.58

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Solution

The fourth proportional to 298,392.12, 447,583.78 and 73,752.58 is: 110,627.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,392.12 : 447,583.78 = 73,752.58 : x
  2. Step 2: Convert to fraction form
    298,392.12/447,583.78 = 73,752.58/x
  3. Step 3: Cross multiply
    298,392.12x = 447,583.78 × 73,752.58
  4. Step 4: Simplify right side
    298,392.12x = 33,010,456,260.31
  5. Step 5: Solve for x
    x = 33,010,456,260.31/298,392.12
  6. Step 6: Final answer
    x = 110,627.77

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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.