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Finding the Fourth Proportional to 344,295.40, 516,443.46 and 107,639.32

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Solution

The fourth proportional to 344,295.40, 516,443.46 and 107,639.32 is: 161,459.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,295.40 : 516,443.46 = 107,639.32 : x
  2. Step 2: Convert to fraction form
    344,295.40/516,443.46 = 107,639.32/x
  3. Step 3: Cross multiply
    344,295.40x = 516,443.46 × 107,639.32
  4. Step 4: Simplify right side
    344,295.40x = 55,589,622,852.85
  5. Step 5: Solve for x
    x = 55,589,622,852.85/344,295.40
  6. Step 6: Final answer
    x = 161,459.09

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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.