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Finding the Fourth Proportional to 308,338.84, 462,513.38 and 108,661.64

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Solution

The fourth proportional to 308,338.84, 462,513.38 and 108,661.64 is: 162,994.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,338.84 : 462,513.38 = 108,661.64 : x
  2. Step 2: Convert to fraction form
    308,338.84/462,513.38 = 108,661.64/x
  3. Step 3: Cross multiply
    308,338.84x = 462,513.38 × 108,661.64
  4. Step 4: Simplify right side
    308,338.84x = 50,257,462,392.74
  5. Step 5: Solve for x
    x = 50,257,462,392.74/308,338.84
  6. Step 6: Final answer
    x = 162,994.26

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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.