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Finding the Fourth Proportional to 147,563.52, 203,637.42 and 80,495.52

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Solution

The fourth proportional to 147,563.52, 203,637.42 and 80,495.52 is: 111,083.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,563.52 : 203,637.42 = 80,495.52 : x
  2. Step 2: Convert to fraction form
    147,563.52/203,637.42 = 80,495.52/x
  3. Step 3: Cross multiply
    147,563.52x = 203,637.42 × 80,495.52
  4. Step 4: Simplify right side
    147,563.52x = 16,391,900,014.36
  5. Step 5: Solve for x
    x = 16,391,900,014.36/147,563.52
  6. Step 6: Final answer
    x = 111,083.69

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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.