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Finding the Fourth Proportional to 88,930.16, 122,768.24 and 68,741.44

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Solution

The fourth proportional to 88,930.16, 122,768.24 and 68,741.44 is: 94,897.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,930.16 : 122,768.24 = 68,741.44 : x
  2. Step 2: Convert to fraction form
    88,930.16/122,768.24 = 68,741.44/x
  3. Step 3: Cross multiply
    88,930.16x = 122,768.24 × 68,741.44
  4. Step 4: Simplify right side
    88,930.16x = 8,439,265,603.87
  5. Step 5: Solve for x
    x = 8,439,265,603.87/88,930.16
  6. Step 6: Final answer
    x = 94,897.68

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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.