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Finding the Fourth Proportional to 361,763.79, 499,226.22 and 208,789.98

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Solution

The fourth proportional to 361,763.79, 499,226.22 and 208,789.98 is: 288,125.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,763.79 : 499,226.22 = 208,789.98 : x
  2. Step 2: Convert to fraction form
    361,763.79/499,226.22 = 208,789.98/x
  3. Step 3: Cross multiply
    361,763.79x = 499,226.22 × 208,789.98
  4. Step 4: Simplify right side
    361,763.79x = 104,233,432,489.28
  5. Step 5: Solve for x
    x = 104,233,432,489.28/361,763.79
  6. Step 6: Final answer
    x = 288,125.66

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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.