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Finding the Fourth Proportional to 168,114.60, 231,994.98 and 91,634.40

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Solution

The fourth proportional to 168,114.60, 231,994.98 and 91,634.40 is: 126,453.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,114.60 : 231,994.98 = 91,634.40 : x
  2. Step 2: Convert to fraction form
    168,114.60/231,994.98 = 91,634.40/x
  3. Step 3: Cross multiply
    168,114.60x = 231,994.98 × 91,634.40
  4. Step 4: Simplify right side
    168,114.60x = 21,258,720,795.31
  5. Step 5: Solve for x
    x = 21,258,720,795.31/168,114.60
  6. Step 6: Final answer
    x = 126,453.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.