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Finding the Fourth Proportional to 160,959.57, 241,676.36 and 90,021.20

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Solution

The fourth proportional to 160,959.57, 241,676.36 and 90,021.20 is: 135,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,959.57 : 241,676.36 = 90,021.20 : x
  2. Step 2: Convert to fraction form
    160,959.57/241,676.36 = 90,021.20/x
  3. Step 3: Cross multiply
    160,959.57x = 241,676.36 × 90,021.20
  4. Step 4: Simplify right side
    160,959.57x = 21,755,994,280.34
  5. Step 5: Solve for x
    x = 21,755,994,280.34/160,959.57
  6. Step 6: Final answer
    x = 135,164.34

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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.