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Finding the Fourth Proportional to 187,467.40, 281,201.10 and 61,107.40

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Solution

The fourth proportional to 187,467.40, 281,201.10 and 61,107.40 is: 91,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,467.40 : 281,201.10 = 61,107.40 : x
  2. Step 2: Convert to fraction form
    187,467.40/281,201.10 = 61,107.40/x
  3. Step 3: Cross multiply
    187,467.40x = 281,201.10 × 61,107.40
  4. Step 4: Simplify right side
    187,467.40x = 17,183,468,098.14
  5. Step 5: Solve for x
    x = 17,183,468,098.14/187,467.40
  6. Step 6: Final answer
    x = 91,661.10

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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.