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Finding the Fourth Proportional to 160,598.85, 221,628.20 and 88,980

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Solution

The fourth proportional to 160,598.85, 221,628.20 and 88,980 is: 122,793.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,598.85 : 221,628.20 = 88,980 : x
  2. Step 2: Convert to fraction form
    160,598.85/221,628.20 = 88,980/x
  3. Step 3: Cross multiply
    160,598.85x = 221,628.20 × 88,980
  4. Step 4: Simplify right side
    160,598.85x = 19,720,476,791.10
  5. Step 5: Solve for x
    x = 19,720,476,791.10/160,598.85
  6. Step 6: Final answer
    x = 122,793.39

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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.