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Finding the Fourth Proportional to 95,505.76, 131,787.84 and 55,213.12

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Solution

The fourth proportional to 95,505.76, 131,787.84 and 55,213.12 is: 76,188.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,505.76 : 131,787.84 = 55,213.12 : x
  2. Step 2: Convert to fraction form
    95,505.76/131,787.84 = 55,213.12/x
  3. Step 3: Cross multiply
    95,505.76x = 131,787.84 × 55,213.12
  4. Step 4: Simplify right side
    95,505.76x = 7,276,417,824.46
  5. Step 5: Solve for x
    x = 7,276,417,824.46/95,505.76
  6. Step 6: Final answer
    x = 76,188.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.