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Finding the Fourth Proportional to 251,108.28, 376,662.42 and 157,679.64

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Solution

The fourth proportional to 251,108.28, 376,662.42 and 157,679.64 is: 236,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,108.28 : 376,662.42 = 157,679.64 : x
  2. Step 2: Convert to fraction form
    251,108.28/376,662.42 = 157,679.64/x
  3. Step 3: Cross multiply
    251,108.28x = 376,662.42 × 157,679.64
  4. Step 4: Simplify right side
    251,108.28x = 59,391,994,787.13
  5. Step 5: Solve for x
    x = 59,391,994,787.13/251,108.28
  6. Step 6: Final answer
    x = 236,519.46

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1.5x scale

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.