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Finding the Fourth Proportional to 344,627.16, 516,728.88 and 134,019.60

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Solution

The fourth proportional to 344,627.16, 516,728.88 and 134,019.60 is: 200,947.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,627.16 : 516,728.88 = 134,019.60 : x
  2. Step 2: Convert to fraction form
    344,627.16/516,728.88 = 134,019.60/x
  3. Step 3: Cross multiply
    344,627.16x = 516,728.88 × 134,019.60
  4. Step 4: Simplify right side
    344,627.16x = 69,251,797,806.05
  5. Step 5: Solve for x
    x = 69,251,797,806.05/344,627.16
  6. Step 6: Final answer
    x = 200,947.01

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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.