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Finding the Fourth Proportional to 131,846.31, 197,840.52 and 87,493.95

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Solution

The fourth proportional to 131,846.31, 197,840.52 and 87,493.95 is: 131,288.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,846.31 : 197,840.52 = 87,493.95 : x
  2. Step 2: Convert to fraction form
    131,846.31/197,840.52 = 87,493.95/x
  3. Step 3: Cross multiply
    131,846.31x = 197,840.52 × 87,493.95
  4. Step 4: Simplify right side
    131,846.31x = 17,309,848,564.85
  5. Step 5: Solve for x
    x = 17,309,848,564.85/131,846.31
  6. Step 6: Final answer
    x = 131,288.08

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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.