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Finding the Fourth Proportional to 93,709.70, 140,409.03 and 65,949.38

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Solution

The fourth proportional to 93,709.70, 140,409.03 and 65,949.38 is: 98,814.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,709.70 : 140,409.03 = 65,949.38 : x
  2. Step 2: Convert to fraction form
    93,709.70/140,409.03 = 65,949.38/x
  3. Step 3: Cross multiply
    93,709.70x = 140,409.03 × 65,949.38
  4. Step 4: Simplify right side
    93,709.70x = 9,259,888,474.90
  5. Step 5: Solve for x
    x = 9,259,888,474.90/93,709.70
  6. Step 6: Final answer
    x = 98,814.62

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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.