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Finding the Fourth Proportional to 554,067.33, 831,101.15 and 133,343.20

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Solution

The fourth proportional to 554,067.33, 831,101.15 and 133,343.20 is: 200,014.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,067.33 : 831,101.15 = 133,343.20 : x
  2. Step 2: Convert to fraction form
    554,067.33/831,101.15 = 133,343.20/x
  3. Step 3: Cross multiply
    554,067.33x = 831,101.15 × 133,343.20
  4. Step 4: Simplify right side
    554,067.33x = 110,821,686,864.68
  5. Step 5: Solve for x
    x = 110,821,686,864.68/554,067.33
  6. Step 6: Final answer
    x = 200,014.84

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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.