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Finding the Fourth Proportional to 127,395.54, 191,116.29 and 52,474.79

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Solution

The fourth proportional to 127,395.54, 191,116.29 and 52,474.79 is: 78,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,395.54 : 191,116.29 = 52,474.79 : x
  2. Step 2: Convert to fraction form
    127,395.54/191,116.29 = 52,474.79/x
  3. Step 3: Cross multiply
    127,395.54x = 191,116.29 × 52,474.79
  4. Step 4: Simplify right side
    127,395.54x = 10,028,786,227.75
  5. Step 5: Solve for x
    x = 10,028,786,227.75/127,395.54
  6. Step 6: Final answer
    x = 78,721.64

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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.