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Finding the Fourth Proportional to 344,103.68, 516,037.86 and 130,820.15

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Solution

The fourth proportional to 344,103.68, 516,037.86 and 130,820.15 is: 196,185.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,103.68 : 516,037.86 = 130,820.15 : x
  2. Step 2: Convert to fraction form
    344,103.68/516,037.86 = 130,820.15/x
  3. Step 3: Cross multiply
    344,103.68x = 516,037.86 × 130,820.15
  4. Step 4: Simplify right side
    344,103.68x = 67,508,147,670.69
  5. Step 5: Solve for x
    x = 67,508,147,670.69/344,103.68
  6. Step 6: Final answer
    x = 196,185.49

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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.