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Finding the Fourth Proportional to 86,058.43, 128,900.70 and 41,591.92

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Solution

The fourth proportional to 86,058.43, 128,900.70 and 41,591.92 is: 62,297.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,058.43 : 128,900.70 = 41,591.92 : x
  2. Step 2: Convert to fraction form
    86,058.43/128,900.70 = 41,591.92/x
  3. Step 3: Cross multiply
    86,058.43x = 128,900.70 × 41,591.92
  4. Step 4: Simplify right side
    86,058.43x = 5,361,227,602.34
  5. Step 5: Solve for x
    x = 5,361,227,602.34/86,058.43
  6. Step 6: Final answer
    x = 62,297.53

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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.