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Finding the Fourth Proportional to 356,251.79, 491,627.65 and 195,116.98

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Solution

The fourth proportional to 356,251.79, 491,627.65 and 195,116.98 is: 269,261.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,251.79 : 491,627.65 = 195,116.98 : x
  2. Step 2: Convert to fraction form
    356,251.79/491,627.65 = 195,116.98/x
  3. Step 3: Cross multiply
    356,251.79x = 491,627.65 × 195,116.98
  4. Step 4: Simplify right side
    356,251.79x = 95,924,900,635.64
  5. Step 5: Solve for x
    x = 95,924,900,635.64/356,251.79
  6. Step 6: Final answer
    x = 269,261.52

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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.