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Finding the Fourth Proportional to 81,994.50, 113,132.94 and 46,177.38

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Solution

The fourth proportional to 81,994.50, 113,132.94 and 46,177.38 is: 63,713.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,994.50 : 113,132.94 = 46,177.38 : x
  2. Step 2: Convert to fraction form
    81,994.50/113,132.94 = 46,177.38/x
  3. Step 3: Cross multiply
    81,994.50x = 113,132.94 × 46,177.38
  4. Step 4: Simplify right side
    81,994.50x = 5,224,182,760.90
  5. Step 5: Solve for x
    x = 5,224,182,760.90/81,994.50
  6. Step 6: Final answer
    x = 63,713.82

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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.