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Finding the Fourth Proportional to 93,278.39, 139,846.84 and 48,251.51

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Solution

The fourth proportional to 93,278.39, 139,846.84 and 48,251.51 is: 72,340.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,278.39 : 139,846.84 = 48,251.51 : x
  2. Step 2: Convert to fraction form
    93,278.39/139,846.84 = 48,251.51/x
  3. Step 3: Cross multiply
    93,278.39x = 139,846.84 × 48,251.51
  4. Step 4: Simplify right side
    93,278.39x = 6,747,821,198.73
  5. Step 5: Solve for x
    x = 6,747,821,198.73/93,278.39
  6. Step 6: Final answer
    x = 72,340.67

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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.