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Finding the Fourth Proportional to 186,608.64, 279,901.44 and 75,797.76

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Solution

The fourth proportional to 186,608.64, 279,901.44 and 75,797.76 is: 113,691.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,608.64 : 279,901.44 = 75,797.76 : x
  2. Step 2: Convert to fraction form
    186,608.64/279,901.44 = 75,797.76/x
  3. Step 3: Cross multiply
    186,608.64x = 279,901.44 × 75,797.76
  4. Step 4: Simplify right side
    186,608.64x = 21,215,902,172.77
  5. Step 5: Solve for x
    x = 21,215,902,172.77/186,608.64
  6. Step 6: Final answer
    x = 113,691.96

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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.