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Finding the Fourth Proportional to 388,998.97, 583,560.72 and 164,361.58

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Solution

The fourth proportional to 388,998.97, 583,560.72 and 164,361.58 is: 246,568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,998.97 : 583,560.72 = 164,361.58 : x
  2. Step 2: Convert to fraction form
    388,998.97/583,560.72 = 164,361.58/x
  3. Step 3: Cross multiply
    388,998.97x = 583,560.72 × 164,361.58
  4. Step 4: Simplify right side
    388,998.97x = 95,914,960,506.24
  5. Step 5: Solve for x
    x = 95,914,960,506.24/388,998.97
  6. Step 6: Final answer
    x = 246,568.68

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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.