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Finding the Fourth Proportional to 239,156.31, 358,755.09 and 61,661.82

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Solution

The fourth proportional to 239,156.31, 358,755.09 and 61,661.82 is: 92,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,156.31 : 358,755.09 = 61,661.82 : x
  2. Step 2: Convert to fraction form
    239,156.31/358,755.09 = 61,661.82/x
  3. Step 3: Cross multiply
    239,156.31x = 358,755.09 × 61,661.82
  4. Step 4: Simplify right side
    239,156.31x = 22,121,491,783.66
  5. Step 5: Solve for x
    x = 22,121,491,783.66/239,156.31
  6. Step 6: Final answer
    x = 92,498.05

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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.