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Finding the Fourth Proportional to 346,958.91, 520,021.89 and 178,558.70

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Solution

The fourth proportional to 346,958.91, 520,021.89 and 178,558.70 is: 267,623.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,958.91 : 520,021.89 = 178,558.70 : x
  2. Step 2: Convert to fraction form
    346,958.91/520,021.89 = 178,558.70/x
  3. Step 3: Cross multiply
    346,958.91x = 520,021.89 × 178,558.70
  4. Step 4: Simplify right side
    346,958.91x = 92,854,430,049.83
  5. Step 5: Solve for x
    x = 92,854,430,049.83/346,958.91
  6. Step 6: Final answer
    x = 267,623.71

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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.