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Finding the Fourth Proportional to 173,142.20, 259,713.30 and 162,644.60

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Solution

The fourth proportional to 173,142.20, 259,713.30 and 162,644.60 is: 243,966.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,142.20 : 259,713.30 = 162,644.60 : x
  2. Step 2: Convert to fraction form
    173,142.20/259,713.30 = 162,644.60/x
  3. Step 3: Cross multiply
    173,142.20x = 259,713.30 × 162,644.60
  4. Step 4: Simplify right side
    173,142.20x = 42,240,965,793.18
  5. Step 5: Solve for x
    x = 42,240,965,793.18/173,142.20
  6. Step 6: Final answer
    x = 243,966.90

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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.