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Finding the Fourth Proportional to 61,190.96, 84,493.32 and 49,862.16

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Solution

The fourth proportional to 61,190.96, 84,493.32 and 49,862.16 is: 68,850.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,190.96 : 84,493.32 = 49,862.16 : x
  2. Step 2: Convert to fraction form
    61,190.96/84,493.32 = 49,862.16/x
  3. Step 3: Cross multiply
    61,190.96x = 84,493.32 × 49,862.16
  4. Step 4: Simplify right side
    61,190.96x = 4,213,019,440.77
  5. Step 5: Solve for x
    x = 4,213,019,440.77/61,190.96
  6. Step 6: Final answer
    x = 68,850.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.