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Finding the Fourth Proportional to 88,912.93, 122,744.45 and 68,724.22

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Solution

The fourth proportional to 88,912.93, 122,744.45 and 68,724.22 is: 94,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,912.93 : 122,744.45 = 68,724.22 : x
  2. Step 2: Convert to fraction form
    88,912.93/122,744.45 = 68,724.22/x
  3. Step 3: Cross multiply
    88,912.93x = 122,744.45 × 68,724.22
  4. Step 4: Simplify right side
    88,912.93x = 8,435,516,585.58
  5. Step 5: Solve for x
    x = 8,435,516,585.58/88,912.93
  6. Step 6: Final answer
    x = 94,873.90

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1.5x scale

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.