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Finding the Fourth Proportional to 167,378.88, 252,219.72 and 138,447.84

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Solution

The fourth proportional to 167,378.88, 252,219.72 and 138,447.84 is: 208,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,378.88 : 252,219.72 = 138,447.84 : x
  2. Step 2: Convert to fraction form
    167,378.88/252,219.72 = 138,447.84/x
  3. Step 3: Cross multiply
    167,378.88x = 252,219.72 × 138,447.84
  4. Step 4: Simplify right side
    167,378.88x = 34,919,275,439.40
  5. Step 5: Solve for x
    x = 34,919,275,439.40/167,378.88
  6. Step 6: Final answer
    x = 208,624.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.