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Finding the Fourth Proportional to 186,491.92, 279,288.60 and 116,283.28

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Solution

The fourth proportional to 186,491.92, 279,288.60 and 116,283.28 is: 174,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,491.92 : 279,288.60 = 116,283.28 : x
  2. Step 2: Convert to fraction form
    186,491.92/279,288.60 = 116,283.28/x
  3. Step 3: Cross multiply
    186,491.92x = 279,288.60 × 116,283.28
  4. Step 4: Simplify right side
    186,491.92x = 32,476,594,474.61
  5. Step 5: Solve for x
    x = 32,476,594,474.61/186,491.92
  6. Step 6: Final answer
    x = 174,144.78

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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.