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Finding the Fourth Proportional to 73,138.66, 109,711.79 and 23,222.67

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Solution

The fourth proportional to 73,138.66, 109,711.79 and 23,222.67 is: 34,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,138.66 : 109,711.79 = 23,222.67 : x
  2. Step 2: Convert to fraction form
    73,138.66/109,711.79 = 23,222.67/x
  3. Step 3: Cross multiply
    73,138.66x = 109,711.79 × 23,222.67
  4. Step 4: Simplify right side
    73,138.66x = 2,547,800,253.83
  5. Step 5: Solve for x
    x = 2,547,800,253.83/73,138.66
  6. Step 6: Final answer
    x = 34,835.21

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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.