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Finding the Fourth Proportional to 88,745.53, 122,260.71 and 61,839.22

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Solution

The fourth proportional to 88,745.53, 122,260.71 and 61,839.22 is: 85,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,745.53 : 122,260.71 = 61,839.22 : x
  2. Step 2: Convert to fraction form
    88,745.53/122,260.71 = 61,839.22/x
  3. Step 3: Cross multiply
    88,745.53x = 122,260.71 × 61,839.22
  4. Step 4: Simplify right side
    88,745.53x = 7,560,506,943.05
  5. Step 5: Solve for x
    x = 7,560,506,943.05/88,745.53
  6. Step 6: Final answer
    x = 85,193.10

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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.