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Finding the Fourth Proportional to 88,707, 122,418.54 and 48,963

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Solution

The fourth proportional to 88,707, 122,418.54 and 48,963 is: 67,570.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,707 : 122,418.54 = 48,963 : x
  2. Step 2: Convert to fraction form
    88,707/122,418.54 = 48,963/x
  3. Step 3: Cross multiply
    88,707x = 122,418.54 × 48,963
  4. Step 4: Simplify right side
    88,707x = 5,993,978,974.02
  5. Step 5: Solve for x
    x = 5,993,978,974.02/88,707
  6. Step 6: Final answer
    x = 67,570.53

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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.