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Finding the Fourth Proportional to 231,210.72, 346,797.86 and 73,440.54

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Solution

The fourth proportional to 231,210.72, 346,797.86 and 73,440.54 is: 110,155.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,210.72 : 346,797.86 = 73,440.54 : x
  2. Step 2: Convert to fraction form
    231,210.72/346,797.86 = 73,440.54/x
  3. Step 3: Cross multiply
    231,210.72x = 346,797.86 × 73,440.54
  4. Step 4: Simplify right side
    231,210.72x = 25,469,021,742.04
  5. Step 5: Solve for x
    x = 25,469,021,742.04/231,210.72
  6. Step 6: Final answer
    x = 110,155.02

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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.