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Finding the Fourth Proportional to 322,991.64, 484,512.12 and 98,371.08

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Solution

The fourth proportional to 322,991.64, 484,512.12 and 98,371.08 is: 147,564.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,991.64 : 484,512.12 = 98,371.08 : x
  2. Step 2: Convert to fraction form
    322,991.64/484,512.12 = 98,371.08/x
  3. Step 3: Cross multiply
    322,991.64x = 484,512.12 × 98,371.08
  4. Step 4: Simplify right side
    322,991.64x = 47,661,980,517.49
  5. Step 5: Solve for x
    x = 47,661,980,517.49/322,991.64
  6. Step 6: Final answer
    x = 147,564.13

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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.