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Finding the Fourth Proportional to 344,092.40, 516,138.60 and 91,372.40

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Solution

The fourth proportional to 344,092.40, 516,138.60 and 91,372.40 is: 137,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,092.40 : 516,138.60 = 91,372.40 : x
  2. Step 2: Convert to fraction form
    344,092.40/516,138.60 = 91,372.40/x
  3. Step 3: Cross multiply
    344,092.40x = 516,138.60 × 91,372.40
  4. Step 4: Simplify right side
    344,092.40x = 47,160,822,614.64
  5. Step 5: Solve for x
    x = 47,160,822,614.64/344,092.40
  6. Step 6: Final answer
    x = 137,058.60

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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.