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Finding the Fourth Proportional to 92,132, 127,140.67 and 51,845.74

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Solution

The fourth proportional to 92,132, 127,140.67 and 51,845.74 is: 71,546.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,132 : 127,140.67 = 51,845.74 : x
  2. Step 2: Convert to fraction form
    92,132/127,140.67 = 51,845.74/x
  3. Step 3: Cross multiply
    92,132x = 127,140.67 × 51,845.74
  4. Step 4: Simplify right side
    92,132x = 6,591,701,861.02
  5. Step 5: Solve for x
    x = 6,591,701,861.02/92,132
  6. Step 6: Final answer
    x = 71,546.28

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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.