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Finding the Fourth Proportional to 147,671.06, 203,786.06 and 80,603.06

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Solution

The fourth proportional to 147,671.06, 203,786.06 and 80,603.06 is: 111,232.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,671.06 : 203,786.06 = 80,603.06 : x
  2. Step 2: Convert to fraction form
    147,671.06/203,786.06 = 80,603.06/x
  3. Step 3: Cross multiply
    147,671.06x = 203,786.06 × 80,603.06
  4. Step 4: Simplify right side
    147,671.06x = 16,425,780,021.34
  5. Step 5: Solve for x
    x = 16,425,780,021.34/147,671.06
  6. Step 6: Final answer
    x = 111,232.22

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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.