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Finding the Fourth Proportional to 404,060.28, 605,958.54 and 134,115.96

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Solution

The fourth proportional to 404,060.28, 605,958.54 and 134,115.96 is: 201,130.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,060.28 : 605,958.54 = 134,115.96 : x
  2. Step 2: Convert to fraction form
    404,060.28/605,958.54 = 134,115.96/x
  3. Step 3: Cross multiply
    404,060.28x = 605,958.54 × 134,115.96
  4. Step 4: Simplify right side
    404,060.28x = 81,268,711,312.30
  5. Step 5: Solve for x
    x = 81,268,711,312.30/404,060.28
  6. Step 6: Final answer
    x = 201,130.17

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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.