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Finding the Fourth Proportional to 218,607.44, 327,515.64 and 100,377.68

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Solution

The fourth proportional to 218,607.44, 327,515.64 and 100,377.68 is: 150,384.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,607.44 : 327,515.64 = 100,377.68 : x
  2. Step 2: Convert to fraction form
    218,607.44/327,515.64 = 100,377.68/x
  3. Step 3: Cross multiply
    218,607.44x = 327,515.64 × 100,377.68
  4. Step 4: Simplify right side
    218,607.44x = 32,875,260,106.92
  5. Step 5: Solve for x
    x = 32,875,260,106.92/218,607.44
  6. Step 6: Final answer
    x = 150,384.91

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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.