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Finding the Fourth Proportional to 92,992.77, 128,331.41 and 50,551.34

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Solution

The fourth proportional to 92,992.77, 128,331.41 and 50,551.34 is: 69,761.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,992.77 : 128,331.41 = 50,551.34 : x
  2. Step 2: Convert to fraction form
    92,992.77/128,331.41 = 50,551.34/x
  3. Step 3: Cross multiply
    92,992.77x = 128,331.41 × 50,551.34
  4. Step 4: Simplify right side
    92,992.77x = 6,487,323,845.18
  5. Step 5: Solve for x
    x = 6,487,323,845.18/92,992.77
  6. Step 6: Final answer
    x = 69,761.59

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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.