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Finding the Fourth Proportional to 70,258.86, 105,367.02 and 36,960.56

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Solution

The fourth proportional to 70,258.86, 105,367.02 and 36,960.56 is: 55,429.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,258.86 : 105,367.02 = 36,960.56 : x
  2. Step 2: Convert to fraction form
    70,258.86/105,367.02 = 36,960.56/x
  3. Step 3: Cross multiply
    70,258.86x = 105,367.02 × 36,960.56
  4. Step 4: Simplify right side
    70,258.86x = 3,894,424,064.73
  5. Step 5: Solve for x
    x = 3,894,424,064.73/70,258.86
  6. Step 6: Final answer
    x = 55,429.65

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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.