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Finding the Fourth Proportional to 93,894.46, 140,933.96 and 68,863.22

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Solution

The fourth proportional to 93,894.46, 140,933.96 and 68,863.22 is: 103,362.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,894.46 : 140,933.96 = 68,863.22 : x
  2. Step 2: Convert to fraction form
    93,894.46/140,933.96 = 68,863.22/x
  3. Step 3: Cross multiply
    93,894.46x = 140,933.96 × 68,863.22
  4. Step 4: Simplify right side
    93,894.46x = 9,705,166,030.70
  5. Step 5: Solve for x
    x = 9,705,166,030.70/93,894.46
  6. Step 6: Final answer
    x = 103,362.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.