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Finding the Fourth Proportional to 92,620.53, 127,769.40 and 58,571.64

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Solution

The fourth proportional to 92,620.53, 127,769.40 and 58,571.64 is: 80,799.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,620.53 : 127,769.40 = 58,571.64 : x
  2. Step 2: Convert to fraction form
    92,620.53/127,769.40 = 58,571.64/x
  3. Step 3: Cross multiply
    92,620.53x = 127,769.40 × 58,571.64
  4. Step 4: Simplify right side
    92,620.53x = 7,483,663,299.82
  5. Step 5: Solve for x
    x = 7,483,663,299.82/92,620.53
  6. Step 6: Final answer
    x = 80,799.18

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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.