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Finding the Fourth Proportional to 186,902.75, 279,896.07 and 168,930.47

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Solution

The fourth proportional to 186,902.75, 279,896.07 and 168,930.47 is: 252,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,902.75 : 279,896.07 = 168,930.47 : x
  2. Step 2: Convert to fraction form
    186,902.75/279,896.07 = 168,930.47/x
  3. Step 3: Cross multiply
    186,902.75x = 279,896.07 × 168,930.47
  4. Step 4: Simplify right side
    186,902.75x = 47,282,974,656.25
  5. Step 5: Solve for x
    x = 47,282,974,656.25/186,902.75
  6. Step 6: Final answer
    x = 252,981.70

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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.