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Finding the Fourth Proportional to 103,668.87, 155,474.53 and 44,491.38

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Solution

The fourth proportional to 103,668.87, 155,474.53 and 44,491.38 is: 66,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,668.87 : 155,474.53 = 44,491.38 : x
  2. Step 2: Convert to fraction form
    103,668.87/155,474.53 = 44,491.38/x
  3. Step 3: Cross multiply
    103,668.87x = 155,474.53 × 44,491.38
  4. Step 4: Simplify right side
    103,668.87x = 6,917,276,394.55
  5. Step 5: Solve for x
    x = 6,917,276,394.55/103,668.87
  6. Step 6: Final answer
    x = 66,724.72

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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.