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Finding the Fourth Proportional to 344,058.52, 516,087.79 and 107,421.48

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Solution

The fourth proportional to 344,058.52, 516,087.79 and 107,421.48 is: 161,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,058.52 : 516,087.79 = 107,421.48 : x
  2. Step 2: Convert to fraction form
    344,058.52/516,087.79 = 107,421.48/x
  3. Step 3: Cross multiply
    344,058.52x = 516,087.79 × 107,421.48
  4. Step 4: Simplify right side
    344,058.52x = 55,438,914,211.73
  5. Step 5: Solve for x
    x = 55,438,914,211.73/344,058.52
  6. Step 6: Final answer
    x = 161,132.22

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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.