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Finding the Fourth Proportional to 107,145.56, 160,719.66 and 73,856.67

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Solution

The fourth proportional to 107,145.56, 160,719.66 and 73,856.67 is: 110,785.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,145.56 : 160,719.66 = 73,856.67 : x
  2. Step 2: Convert to fraction form
    107,145.56/160,719.66 = 73,856.67/x
  3. Step 3: Cross multiply
    107,145.56x = 160,719.66 × 73,856.67
  4. Step 4: Simplify right side
    107,145.56x = 11,870,218,891.13
  5. Step 5: Solve for x
    x = 11,870,218,891.13/107,145.56
  6. Step 6: Final answer
    x = 110,785.92

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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.