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Finding the Fourth Proportional to 344,074.80, 516,009.80 and 133,591.60

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Solution

The fourth proportional to 344,074.80, 516,009.80 and 133,591.60 is: 200,347.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,074.80 : 516,009.80 = 133,591.60 : x
  2. Step 2: Convert to fraction form
    344,074.80/516,009.80 = 133,591.60/x
  3. Step 3: Cross multiply
    344,074.80x = 516,009.80 × 133,591.60
  4. Step 4: Simplify right side
    344,074.80x = 68,934,574,797.68
  5. Step 5: Solve for x
    x = 68,934,574,797.68/344,074.80
  6. Step 6: Final answer
    x = 200,347.64

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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.