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Finding the Fourth Proportional to 344,071.89, 516,108.19 and 130,789.68

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Solution

The fourth proportional to 344,071.89, 516,108.19 and 130,789.68 is: 196,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,071.89 : 516,108.19 = 130,789.68 : x
  2. Step 2: Convert to fraction form
    344,071.89/516,108.19 = 130,789.68/x
  3. Step 3: Cross multiply
    344,071.89x = 516,108.19 × 130,789.68
  4. Step 4: Simplify right side
    344,071.89x = 67,501,625,015.48
  5. Step 5: Solve for x
    x = 67,501,625,015.48/344,071.89
  6. Step 6: Final answer
    x = 196,184.65

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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.