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Finding the Fourth Proportional to 61,383.86, 84,793.11 and 48,122.54

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Solution

The fourth proportional to 61,383.86, 84,793.11 and 48,122.54 is: 66,474.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,383.86 : 84,793.11 = 48,122.54 : x
  2. Step 2: Convert to fraction form
    61,383.86/84,793.11 = 48,122.54/x
  3. Step 3: Cross multiply
    61,383.86x = 84,793.11 × 48,122.54
  4. Step 4: Simplify right side
    61,383.86x = 4,080,459,827.70
  5. Step 5: Solve for x
    x = 4,080,459,827.70/61,383.86
  6. Step 6: Final answer
    x = 66,474.47

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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.