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Finding the Fourth Proportional to 259,226.01, 388,489.08 and 134,654.49

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Solution

The fourth proportional to 259,226.01, 388,489.08 and 134,654.49 is: 201,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,226.01 : 388,489.08 = 134,654.49 : x
  2. Step 2: Convert to fraction form
    259,226.01/388,489.08 = 134,654.49/x
  3. Step 3: Cross multiply
    259,226.01x = 388,489.08 × 134,654.49
  4. Step 4: Simplify right side
    259,226.01x = 52,311,798,937.97
  5. Step 5: Solve for x
    x = 52,311,798,937.97/259,226.01
  6. Step 6: Final answer
    x = 201,799.96

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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.