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Finding the Fourth Proportional to 344,263.32, 516,278.88 and 130,980.60

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Solution

The fourth proportional to 344,263.32, 516,278.88 and 130,980.60 is: 196,426.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,263.32 : 516,278.88 = 130,980.60 : x
  2. Step 2: Convert to fraction form
    344,263.32/516,278.88 = 130,980.60/x
  3. Step 3: Cross multiply
    344,263.32x = 516,278.88 × 130,980.60
  4. Step 4: Simplify right side
    344,263.32x = 67,622,517,469.73
  5. Step 5: Solve for x
    x = 67,622,517,469.73/344,263.32
  6. Step 6: Final answer
    x = 196,426.73

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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.