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Finding the Fourth Proportional to 352,445.86, 486,375.78 and 191,300.94

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Solution

The fourth proportional to 352,445.86, 486,375.78 and 191,300.94 is: 263,995.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,445.86 : 486,375.78 = 191,300.94 : x
  2. Step 2: Convert to fraction form
    352,445.86/486,375.78 = 191,300.94/x
  3. Step 3: Cross multiply
    352,445.86x = 486,375.78 × 191,300.94
  4. Step 4: Simplify right side
    352,445.86x = 93,044,143,907.23
  5. Step 5: Solve for x
    x = 93,044,143,907.23/352,445.86
  6. Step 6: Final answer
    x = 263,995.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.