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Finding the Fourth Proportional to 354,508.25, 531,318.89 and 177,064.79

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Solution

The fourth proportional to 354,508.25, 531,318.89 and 177,064.79 is: 265,375.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,508.25 : 531,318.89 = 177,064.79 : x
  2. Step 2: Convert to fraction form
    354,508.25/531,318.89 = 177,064.79/x
  3. Step 3: Cross multiply
    354,508.25x = 531,318.89 × 177,064.79
  4. Step 4: Simplify right side
    354,508.25x = 94,077,864,138.96
  5. Step 5: Solve for x
    x = 94,077,864,138.96/354,508.25
  6. Step 6: Final answer
    x = 265,375.67

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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.