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Finding the Fourth Proportional to 150,663.35, 207,914.77 and 82,681.43

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Solution

The fourth proportional to 150,663.35, 207,914.77 and 82,681.43 is: 114,100.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,663.35 : 207,914.77 = 82,681.43 : x
  2. Step 2: Convert to fraction form
    150,663.35/207,914.77 = 82,681.43/x
  3. Step 3: Cross multiply
    150,663.35x = 207,914.77 × 82,681.43
  4. Step 4: Simplify right side
    150,663.35x = 17,190,690,501.72
  5. Step 5: Solve for x
    x = 17,190,690,501.72/150,663.35
  6. Step 6: Final answer
    x = 114,100.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.