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Finding the Fourth Proportional to 70,615.97, 105,923.79 and 44,339.15

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Solution

The fourth proportional to 70,615.97, 105,923.79 and 44,339.15 is: 66,508.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,615.97 : 105,923.79 = 44,339.15 : x
  2. Step 2: Convert to fraction form
    70,615.97/105,923.79 = 44,339.15/x
  3. Step 3: Cross multiply
    70,615.97x = 105,923.79 × 44,339.15
  4. Step 4: Simplify right side
    70,615.97x = 4,696,570,813.38
  5. Step 5: Solve for x
    x = 4,696,570,813.38/70,615.97
  6. Step 6: Final answer
    x = 66,508.62

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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.