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Finding the Fourth Proportional to 206,660.67, 310,020.17 and 73,501.53

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Solution

The fourth proportional to 206,660.67, 310,020.17 and 73,501.53 is: 110,262.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,660.67 : 310,020.17 = 73,501.53 : x
  2. Step 2: Convert to fraction form
    206,660.67/310,020.17 = 73,501.53/x
  3. Step 3: Cross multiply
    206,660.67x = 310,020.17 × 73,501.53
  4. Step 4: Simplify right side
    206,660.67x = 22,786,956,458.35
  5. Step 5: Solve for x
    x = 22,786,956,458.35/206,660.67
  6. Step 6: Final answer
    x = 110,262.67

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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.