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Finding the Fourth Proportional to 92,146.75, 127,201.76 and 61,949.59

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Solution

The fourth proportional to 92,146.75, 127,201.76 and 61,949.59 is: 85,516.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,146.75 : 127,201.76 = 61,949.59 : x
  2. Step 2: Convert to fraction form
    92,146.75/127,201.76 = 61,949.59/x
  3. Step 3: Cross multiply
    92,146.75x = 127,201.76 × 61,949.59
  4. Step 4: Simplify right side
    92,146.75x = 7,880,095,933.52
  5. Step 5: Solve for x
    x = 7,880,095,933.52/92,146.75
  6. Step 6: Final answer
    x = 85,516.81

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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.