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Finding the Fourth Proportional to 118,551.78, 163,761.21 and 94,847.94

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Solution

The fourth proportional to 118,551.78, 163,761.21 and 94,847.94 is: 131,017.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,551.78 : 163,761.21 = 94,847.94 : x
  2. Step 2: Convert to fraction form
    118,551.78/163,761.21 = 94,847.94/x
  3. Step 3: Cross multiply
    118,551.78x = 163,761.21 × 94,847.94
  4. Step 4: Simplify right side
    118,551.78x = 15,532,413,420.41
  5. Step 5: Solve for x
    x = 15,532,413,420.41/118,551.78
  6. Step 6: Final answer
    x = 131,017.97

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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.