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Finding the Fourth Proportional to 101,098.67, 139,515.20 and 55,777.02

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Solution

The fourth proportional to 101,098.67, 139,515.20 and 55,777.02 is: 76,971.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,098.67 : 139,515.20 = 55,777.02 : x
  2. Step 2: Convert to fraction form
    101,098.67/139,515.20 = 55,777.02/x
  3. Step 3: Cross multiply
    101,098.67x = 139,515.20 × 55,777.02
  4. Step 4: Simplify right side
    101,098.67x = 7,781,741,507.80
  5. Step 5: Solve for x
    x = 7,781,741,507.80/101,098.67
  6. Step 6: Final answer
    x = 76,971.75

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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.