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Finding the Fourth Proportional to 163,361.80, 244,913.10 and 89,489.80

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Solution

The fourth proportional to 163,361.80, 244,913.10 and 89,489.80 is: 134,163.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,361.80 : 244,913.10 = 89,489.80 : x
  2. Step 2: Convert to fraction form
    163,361.80/244,913.10 = 89,489.80/x
  3. Step 3: Cross multiply
    163,361.80x = 244,913.10 × 89,489.80
  4. Step 4: Simplify right side
    163,361.80x = 21,917,224,336.38
  5. Step 5: Solve for x
    x = 21,917,224,336.38/163,361.80
  6. Step 6: Final answer
    x = 134,163.70

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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.