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Finding the Fourth Proportional to 92,571.32, 127,748.83 and 50,129.90

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Solution

The fourth proportional to 92,571.32, 127,748.83 and 50,129.90 is: 69,179.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,571.32 : 127,748.83 = 50,129.90 : x
  2. Step 2: Convert to fraction form
    92,571.32/127,748.83 = 50,129.90/x
  3. Step 3: Cross multiply
    92,571.32x = 127,748.83 × 50,129.90
  4. Step 4: Simplify right side
    92,571.32x = 6,404,036,073.02
  5. Step 5: Solve for x
    x = 6,404,036,073.02/92,571.32
  6. Step 6: Final answer
    x = 69,179.48

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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.