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Finding the Fourth Proportional to 344,423.94, 516,641.18 and 131,203.69

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Solution

The fourth proportional to 344,423.94, 516,641.18 and 131,203.69 is: 196,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,423.94 : 516,641.18 = 131,203.69 : x
  2. Step 2: Convert to fraction form
    344,423.94/516,641.18 = 131,203.69/x
  3. Step 3: Cross multiply
    344,423.94x = 516,641.18 × 131,203.69
  4. Step 4: Simplify right side
    344,423.94x = 67,785,230,185.55
  5. Step 5: Solve for x
    x = 67,785,230,185.55/344,423.94
  6. Step 6: Final answer
    x = 196,807.54

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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.