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Finding the Fourth Proportional to 167,998.40, 252,019.20 and 83,801.60

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Solution

The fourth proportional to 167,998.40, 252,019.20 and 83,801.60 is: 125,713.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,998.40 : 252,019.20 = 83,801.60 : x
  2. Step 2: Convert to fraction form
    167,998.40/252,019.20 = 83,801.60/x
  3. Step 3: Cross multiply
    167,998.40x = 252,019.20 × 83,801.60
  4. Step 4: Simplify right side
    167,998.40x = 21,119,612,190.72
  5. Step 5: Solve for x
    x = 21,119,612,190.72/167,998.40
  6. Step 6: Final answer
    x = 125,713.17

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1.5x scale

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.