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Finding the Fourth Proportional to 134,571.31, 201,981.80 and 68,058.56

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Solution

The fourth proportional to 134,571.31, 201,981.80 and 68,058.56 is: 102,150.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,571.31 : 201,981.80 = 68,058.56 : x
  2. Step 2: Convert to fraction form
    134,571.31/201,981.80 = 68,058.56/x
  3. Step 3: Cross multiply
    134,571.31x = 201,981.80 × 68,058.56
  4. Step 4: Simplify right side
    134,571.31x = 13,746,591,129.31
  5. Step 5: Solve for x
    x = 13,746,591,129.31/134,571.31
  6. Step 6: Final answer
    x = 102,150.98

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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.