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Finding the Fourth Proportional to 344,805.26, 517,202.65 and 155,131.67

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Solution

The fourth proportional to 344,805.26, 517,202.65 and 155,131.67 is: 232,695.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,805.26 : 517,202.65 = 155,131.67 : x
  2. Step 2: Convert to fraction form
    344,805.26/517,202.65 = 155,131.67/x
  3. Step 3: Cross multiply
    344,805.26x = 517,202.65 × 155,131.67
  4. Step 4: Simplify right side
    344,805.26x = 80,234,512,309.85
  5. Step 5: Solve for x
    x = 80,234,512,309.85/344,805.26
  6. Step 6: Final answer
    x = 232,695.16

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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.