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Finding the Fourth Proportional to 135,909.80, 203,864.70 and 134,597.60

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Solution

The fourth proportional to 135,909.80, 203,864.70 and 134,597.60 is: 201,896.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,909.80 : 203,864.70 = 134,597.60 : x
  2. Step 2: Convert to fraction form
    135,909.80/203,864.70 = 134,597.60/x
  3. Step 3: Cross multiply
    135,909.80x = 203,864.70 × 134,597.60
  4. Step 4: Simplify right side
    135,909.80x = 27,439,699,344.72
  5. Step 5: Solve for x
    x = 27,439,699,344.72/135,909.80
  6. Step 6: Final answer
    x = 201,896.40

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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.