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Finding the Fourth Proportional to 134,816.80, 201,954.52 and 67,144.88

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Solution

The fourth proportional to 134,816.80, 201,954.52 and 67,144.88 is: 100,582.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,816.80 : 201,954.52 = 67,144.88 : x
  2. Step 2: Convert to fraction form
    134,816.80/201,954.52 = 67,144.88/x
  3. Step 3: Cross multiply
    134,816.80x = 201,954.52 × 67,144.88
  4. Step 4: Simplify right side
    134,816.80x = 13,560,212,010.86
  5. Step 5: Solve for x
    x = 13,560,212,010.86/134,816.80
  6. Step 6: Final answer
    x = 100,582.51

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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.