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Finding the Fourth Proportional to 160,636.75, 221,673.13 and 89,023.43

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Solution

The fourth proportional to 160,636.75, 221,673.13 and 89,023.43 is: 122,849.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,636.75 : 221,673.13 = 89,023.43 : x
  2. Step 2: Convert to fraction form
    160,636.75/221,673.13 = 89,023.43/x
  3. Step 3: Cross multiply
    160,636.75x = 221,673.13 × 89,023.43
  4. Step 4: Simplify right side
    160,636.75x = 19,734,102,371.44
  5. Step 5: Solve for x
    x = 19,734,102,371.44/160,636.75
  6. Step 6: Final answer
    x = 122,849.24

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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.