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Finding the Fourth Proportional to 352,818.78, 529,236.81 and 103,508.70

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Solution

The fourth proportional to 352,818.78, 529,236.81 and 103,508.70 is: 155,265.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,818.78 : 529,236.81 = 103,508.70 : x
  2. Step 2: Convert to fraction form
    352,818.78/529,236.81 = 103,508.70/x
  3. Step 3: Cross multiply
    352,818.78x = 529,236.81 × 103,508.70
  4. Step 4: Simplify right side
    352,818.78x = 54,780,614,195.25
  5. Step 5: Solve for x
    x = 54,780,614,195.25/352,818.78
  6. Step 6: Final answer
    x = 155,265.58

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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.