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Finding the Fourth Proportional to 93,245.92, 139,869 and 71,184.54

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Solution

The fourth proportional to 93,245.92, 139,869 and 71,184.54 is: 106,776.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,245.92 : 139,869 = 71,184.54 : x
  2. Step 2: Convert to fraction form
    93,245.92/139,869 = 71,184.54/x
  3. Step 3: Cross multiply
    93,245.92x = 139,869 × 71,184.54
  4. Step 4: Simplify right side
    93,245.92x = 9,956,510,425.26
  5. Step 5: Solve for x
    x = 9,956,510,425.26/93,245.92
  6. Step 6: Final answer
    x = 106,776.90

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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.