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Finding the Fourth Proportional to 344,626.34, 516,939.71 and 107,987.54

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Solution

The fourth proportional to 344,626.34, 516,939.71 and 107,987.54 is: 161,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,626.34 : 516,939.71 = 107,987.54 : x
  2. Step 2: Convert to fraction form
    344,626.34/516,939.71 = 107,987.54/x
  3. Step 3: Cross multiply
    344,626.34x = 516,939.71 × 107,987.54
  4. Step 4: Simplify right side
    344,626.34x = 55,823,044,486.58
  5. Step 5: Solve for x
    x = 55,823,044,486.58/344,626.34
  6. Step 6: Final answer
    x = 161,981.37

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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.