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Finding the Fourth Proportional to 84,963.89, 127,270.83 and 49,818.80

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Solution

The fourth proportional to 84,963.89, 127,270.83 and 49,818.80 is: 74,625.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,963.89 : 127,270.83 = 49,818.80 : x
  2. Step 2: Convert to fraction form
    84,963.89/127,270.83 = 49,818.80/x
  3. Step 3: Cross multiply
    84,963.89x = 127,270.83 × 49,818.80
  4. Step 4: Simplify right side
    84,963.89x = 6,340,480,025.60
  5. Step 5: Solve for x
    x = 6,340,480,025.60/84,963.89
  6. Step 6: Final answer
    x = 74,625.59

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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.