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Finding the Fourth Proportional to 61,734.15, 85,188.11 and 36,237.78

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Solution

The fourth proportional to 61,734.15, 85,188.11 and 36,237.78 is: 50,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,734.15 : 85,188.11 = 36,237.78 : x
  2. Step 2: Convert to fraction form
    61,734.15/85,188.11 = 36,237.78/x
  3. Step 3: Cross multiply
    61,734.15x = 85,188.11 × 36,237.78
  4. Step 4: Simplify right side
    61,734.15x = 3,087,027,807.61
  5. Step 5: Solve for x
    x = 3,087,027,807.61/61,734.15
  6. Step 6: Final answer
    x = 50,005.19

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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.