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Finding the Fourth Proportional to 344,647.90, 516,972.12 and 108,008.97

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Solution

The fourth proportional to 344,647.90, 516,972.12 and 108,008.97 is: 162,013.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,647.90 : 516,972.12 = 108,008.97 : x
  2. Step 2: Convert to fraction form
    344,647.90/516,972.12 = 108,008.97/x
  3. Step 3: Cross multiply
    344,647.90x = 516,972.12 × 108,008.97
  4. Step 4: Simplify right side
    344,647.90x = 55,837,626,199.92
  5. Step 5: Solve for x
    x = 55,837,626,199.92/344,647.90
  6. Step 6: Final answer
    x = 162,013.54

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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.