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Finding the Fourth Proportional to 367,924.44, 551,955.10 and 128,028.36

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Solution

The fourth proportional to 367,924.44, 551,955.10 and 128,028.36 is: 192,066.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,924.44 : 551,955.10 = 128,028.36 : x
  2. Step 2: Convert to fraction form
    367,924.44/551,955.10 = 128,028.36/x
  3. Step 3: Cross multiply
    367,924.44x = 551,955.10 × 128,028.36
  4. Step 4: Simplify right side
    367,924.44x = 70,665,906,246.64
  5. Step 5: Solve for x
    x = 70,665,906,246.64/367,924.44
  6. Step 6: Final answer
    x = 192,066.36

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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.