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Finding the Fourth Proportional to 88,703.15, 122,202.41 and 61,796.97

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Solution

The fourth proportional to 88,703.15, 122,202.41 and 61,796.97 is: 85,134.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,703.15 : 122,202.41 = 61,796.97 : x
  2. Step 2: Convert to fraction form
    88,703.15/122,202.41 = 61,796.97/x
  3. Step 3: Cross multiply
    88,703.15x = 122,202.41 × 61,796.97
  4. Step 4: Simplify right side
    88,703.15x = 7,551,738,355.71
  5. Step 5: Solve for x
    x = 7,551,738,355.71/88,703.15
  6. Step 6: Final answer
    x = 85,134.96

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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.