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Finding the Fourth Proportional to 352,042.60, 528,063.90 and 194,578.60

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Solution

The fourth proportional to 352,042.60, 528,063.90 and 194,578.60 is: 291,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,042.60 : 528,063.90 = 194,578.60 : x
  2. Step 2: Convert to fraction form
    352,042.60/528,063.90 = 194,578.60/x
  3. Step 3: Cross multiply
    352,042.60x = 528,063.90 × 194,578.60
  4. Step 4: Simplify right side
    352,042.60x = 102,749,934,372.54
  5. Step 5: Solve for x
    x = 102,749,934,372.54/352,042.60
  6. Step 6: Final answer
    x = 291,867.90

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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.