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Finding the Fourth Proportional to 361,096.90, 498,278.96 and 215,873.98

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Solution

The fourth proportional to 361,096.90, 498,278.96 and 215,873.98 is: 297,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,096.90 : 498,278.96 = 215,873.98 : x
  2. Step 2: Convert to fraction form
    361,096.90/498,278.96 = 215,873.98/x
  3. Step 3: Cross multiply
    361,096.90x = 498,278.96 × 215,873.98
  4. Step 4: Simplify right side
    361,096.90x = 107,565,462,245.46
  5. Step 5: Solve for x
    x = 107,565,462,245.46/361,096.90
  6. Step 6: Final answer
    x = 297,885.31

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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.