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Finding the Fourth Proportional to 344,105.73, 516,040.93 and 130,822.20

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Solution

The fourth proportional to 344,105.73, 516,040.93 and 130,822.20 is: 196,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,105.73 : 516,040.93 = 130,822.20 : x
  2. Step 2: Convert to fraction form
    344,105.73/516,040.93 = 130,822.20/x
  3. Step 3: Cross multiply
    344,105.73x = 516,040.93 × 130,822.20
  4. Step 4: Simplify right side
    344,105.73x = 67,509,609,752.65
  5. Step 5: Solve for x
    x = 67,509,609,752.65/344,105.73
  6. Step 6: Final answer
    x = 196,188.57

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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.