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Finding the Fourth Proportional to 131,241.31, 196,893.32 and 42,494.91

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Solution

The fourth proportional to 131,241.31, 196,893.32 and 42,494.91 is: 63,752.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,241.31 : 196,893.32 = 42,494.91 : x
  2. Step 2: Convert to fraction form
    131,241.31/196,893.32 = 42,494.91/x
  3. Step 3: Cross multiply
    131,241.31x = 196,893.32 × 42,494.91
  4. Step 4: Simplify right side
    131,241.31x = 8,366,963,913.00
  5. Step 5: Solve for x
    x = 8,366,963,913.00/131,241.31
  6. Step 6: Final answer
    x = 63,752.52

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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.