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Finding the Fourth Proportional to 158,593.74, 237,917.28 and 78,635.66

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Solution

The fourth proportional to 158,593.74, 237,917.28 and 78,635.66 is: 117,966.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,593.74 : 237,917.28 = 78,635.66 : x
  2. Step 2: Convert to fraction form
    158,593.74/237,917.28 = 78,635.66/x
  3. Step 3: Cross multiply
    158,593.74x = 237,917.28 × 78,635.66
  4. Step 4: Simplify right side
    158,593.74x = 18,708,782,040.81
  5. Step 5: Solve for x
    x = 18,708,782,040.81/158,593.74
  6. Step 6: Final answer
    x = 117,966.71

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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.