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Finding the Fourth Proportional to 367,521.10, 551,359.56 and 130,863.09

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Solution

The fourth proportional to 367,521.10, 551,359.56 and 130,863.09 is: 196,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,521.10 : 551,359.56 = 130,863.09 : x
  2. Step 2: Convert to fraction form
    367,521.10/551,359.56 = 130,863.09/x
  3. Step 3: Cross multiply
    367,521.10x = 551,359.56 × 130,863.09
  4. Step 4: Simplify right side
    367,521.10x = 72,152,617,544.87
  5. Step 5: Solve for x
    x = 72,152,617,544.87/367,521.10
  6. Step 6: Final answer
    x = 196,322.38

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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.