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Finding the Fourth Proportional to 103,958.79, 155,950.38 and 36,470.19

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Solution

The fourth proportional to 103,958.79, 155,950.38 and 36,470.19 is: 54,709.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,958.79 : 155,950.38 = 36,470.19 : x
  2. Step 2: Convert to fraction form
    103,958.79/155,950.38 = 36,470.19/x
  3. Step 3: Cross multiply
    103,958.79x = 155,950.38 × 36,470.19
  4. Step 4: Simplify right side
    103,958.79x = 5,687,539,989.17
  5. Step 5: Solve for x
    x = 5,687,539,989.17/103,958.79
  6. Step 6: Final answer
    x = 54,709.56

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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.