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Finding the Fourth Proportional to 186,690.97, 279,538.23 and 97,757.53

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Solution

The fourth proportional to 186,690.97, 279,538.23 and 97,757.53 is: 146,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,690.97 : 279,538.23 = 97,757.53 : x
  2. Step 2: Convert to fraction form
    186,690.97/279,538.23 = 97,757.53/x
  3. Step 3: Cross multiply
    186,690.97x = 279,538.23 × 97,757.53
  4. Step 4: Simplify right side
    186,690.97x = 27,326,965,507.68
  5. Step 5: Solve for x
    x = 27,326,965,507.68/186,690.97
  6. Step 6: Final answer
    x = 146,375.40

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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.