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Finding the Fourth Proportional to 61,730.41, 85,187.93 and 36,236.77

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Solution

The fourth proportional to 61,730.41, 85,187.93 and 36,236.77 is: 50,006.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,730.41 : 85,187.93 = 36,236.77 : x
  2. Step 2: Convert to fraction form
    61,730.41/85,187.93 = 36,236.77/x
  3. Step 3: Cross multiply
    61,730.41x = 85,187.93 × 36,236.77
  4. Step 4: Simplify right side
    61,730.41x = 3,086,935,595.25
  5. Step 5: Solve for x
    x = 3,086,935,595.25/61,730.41
  6. Step 6: Final answer
    x = 50,006.73

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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.