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Finding the Fourth Proportional to 354,645.72, 531,421.83 and 174,524.40

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Solution

The fourth proportional to 354,645.72, 531,421.83 and 174,524.40 is: 261,517.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,645.72 : 531,421.83 = 174,524.40 : x
  2. Step 2: Convert to fraction form
    354,645.72/531,421.83 = 174,524.40/x
  3. Step 3: Cross multiply
    354,645.72x = 531,421.83 × 174,524.40
  4. Step 4: Simplify right side
    354,645.72x = 92,746,076,027.65
  5. Step 5: Solve for x
    x = 92,746,076,027.65/354,645.72
  6. Step 6: Final answer
    x = 261,517.54

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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.