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Finding the Fourth Proportional to 347,067.54, 520,007.18 and 189,406.71

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Solution

The fourth proportional to 347,067.54, 520,007.18 and 189,406.71 is: 283,785.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,067.54 : 520,007.18 = 189,406.71 : x
  2. Step 2: Convert to fraction form
    347,067.54/520,007.18 = 189,406.71/x
  3. Step 3: Cross multiply
    347,067.54x = 520,007.18 × 189,406.71
  4. Step 4: Simplify right side
    347,067.54x = 98,492,848,193.14
  5. Step 5: Solve for x
    x = 98,492,848,193.14/347,067.54
  6. Step 6: Final answer
    x = 283,785.83

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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.