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Finding the Fourth Proportional to 186,512.15, 279,850.89 and 97,744.54

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Solution

The fourth proportional to 186,512.15, 279,850.89 and 97,744.54 is: 146,660.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,512.15 : 279,850.89 = 97,744.54 : x
  2. Step 2: Convert to fraction form
    186,512.15/279,850.89 = 97,744.54/x
  3. Step 3: Cross multiply
    186,512.15x = 279,850.89 × 97,744.54
  4. Step 4: Simplify right side
    186,512.15x = 27,353,896,511.64
  5. Step 5: Solve for x
    x = 27,353,896,511.64/186,512.15
  6. Step 6: Final answer
    x = 146,660.13

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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.