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Finding the Fourth Proportional to 70,257.86, 105,365.52 and 36,959.56

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Solution

The fourth proportional to 70,257.86, 105,365.52 and 36,959.56 is: 55,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,257.86 : 105,365.52 = 36,959.56 : x
  2. Step 2: Convert to fraction form
    70,257.86/105,365.52 = 36,959.56/x
  3. Step 3: Cross multiply
    70,257.86x = 105,365.52 × 36,959.56
  4. Step 4: Simplify right side
    70,257.86x = 3,894,263,258.37
  5. Step 5: Solve for x
    x = 3,894,263,258.37/70,257.86
  6. Step 6: Final answer
    x = 55,428.15

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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.