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Finding the Fourth Proportional to 186,648.96, 279,860.82 and 74,346.48

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Solution

The fourth proportional to 186,648.96, 279,860.82 and 74,346.48 is: 111,474.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,648.96 : 279,860.82 = 74,346.48 : x
  2. Step 2: Convert to fraction form
    186,648.96/279,860.82 = 74,346.48/x
  3. Step 3: Cross multiply
    186,648.96x = 279,860.82 × 74,346.48
  4. Step 4: Simplify right side
    186,648.96x = 20,806,666,856.91
  5. Step 5: Solve for x
    x = 20,806,666,856.91/186,648.96
  6. Step 6: Final answer
    x = 111,474.86

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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.