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Finding the Fourth Proportional to 92,571.40, 127,660.77 and 63,845.15

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Solution

The fourth proportional to 92,571.40, 127,660.77 and 63,845.15 is: 88,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,571.40 : 127,660.77 = 63,845.15 : x
  2. Step 2: Convert to fraction form
    92,571.40/127,660.77 = 63,845.15/x
  3. Step 3: Cross multiply
    92,571.40x = 127,660.77 × 63,845.15
  4. Step 4: Simplify right side
    92,571.40x = 8,150,521,328.92
  5. Step 5: Solve for x
    x = 8,150,521,328.92/92,571.40
  6. Step 6: Final answer
    x = 88,045.78

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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.