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Finding the Fourth Proportional to 117,589.77, 176,611.66 and 100,760.81

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Solution

The fourth proportional to 117,589.77, 176,611.66 and 100,760.81 is: 151,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,589.77 : 176,611.66 = 100,760.81 : x
  2. Step 2: Convert to fraction form
    117,589.77/176,611.66 = 100,760.81/x
  3. Step 3: Cross multiply
    117,589.77x = 176,611.66 × 100,760.81
  4. Step 4: Simplify right side
    117,589.77x = 17,795,532,782.08
  5. Step 5: Solve for x
    x = 17,795,532,782.08/117,589.77
  6. Step 6: Final answer
    x = 151,335.72

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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.