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Finding the Fourth Proportional to 92,710.46, 127,939.20 and 50,268.08

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Solution

The fourth proportional to 92,710.46, 127,939.20 and 50,268.08 is: 69,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,710.46 : 127,939.20 = 50,268.08 : x
  2. Step 2: Convert to fraction form
    92,710.46/127,939.20 = 50,268.08/x
  3. Step 3: Cross multiply
    92,710.46x = 127,939.20 × 50,268.08
  4. Step 4: Simplify right side
    92,710.46x = 6,431,257,940.74
  5. Step 5: Solve for x
    x = 6,431,257,940.74/92,710.46
  6. Step 6: Final answer
    x = 69,369.28

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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.