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Finding the Fourth Proportional to 234,467.97, 351,630.13 and 84,689.79

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Solution

The fourth proportional to 234,467.97, 351,630.13 and 84,689.79 is: 127,008.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,467.97 : 351,630.13 = 84,689.79 : x
  2. Step 2: Convert to fraction form
    234,467.97/351,630.13 = 84,689.79/x
  3. Step 3: Cross multiply
    234,467.97x = 351,630.13 × 84,689.79
  4. Step 4: Simplify right side
    234,467.97x = 29,779,481,867.37
  5. Step 5: Solve for x
    x = 29,779,481,867.37/234,467.97
  6. Step 6: Final answer
    x = 127,008.74

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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.