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Finding the Fourth Proportional to 108,793.49, 163,223.64 and 51,939.95

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Solution

The fourth proportional to 108,793.49, 163,223.64 and 51,939.95 is: 77,925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,793.49 : 163,223.64 = 51,939.95 : x
  2. Step 2: Convert to fraction form
    108,793.49/163,223.64 = 51,939.95/x
  3. Step 3: Cross multiply
    108,793.49x = 163,223.64 × 51,939.95
  4. Step 4: Simplify right side
    108,793.49x = 8,477,826,884.30
  5. Step 5: Solve for x
    x = 8,477,826,884.30/108,793.49
  6. Step 6: Final answer
    x = 77,925.87

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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.