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Finding the Fourth Proportional to 308,818.88, 463,246.68 and 119,280.68

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Solution

The fourth proportional to 308,818.88, 463,246.68 and 119,280.68 is: 178,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,818.88 : 463,246.68 = 119,280.68 : x
  2. Step 2: Convert to fraction form
    308,818.88/463,246.68 = 119,280.68/x
  3. Step 3: Cross multiply
    308,818.88x = 463,246.68 × 119,280.68
  4. Step 4: Simplify right side
    308,818.88x = 55,256,378,998.14
  5. Step 5: Solve for x
    x = 55,256,378,998.14/308,818.88
  6. Step 6: Final answer
    x = 178,928.11

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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.