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Finding the Fourth Proportional to 352,874.76, 486,969.16 and 191,731.12

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Solution

The fourth proportional to 352,874.76, 486,969.16 and 191,731.12 is: 264,590.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,874.76 : 486,969.16 = 191,731.12 : x
  2. Step 2: Convert to fraction form
    352,874.76/486,969.16 = 191,731.12/x
  3. Step 3: Cross multiply
    352,874.76x = 486,969.16 × 191,731.12
  4. Step 4: Simplify right side
    352,874.76x = 93,367,142,452.26
  5. Step 5: Solve for x
    x = 93,367,142,452.26/352,874.76
  6. Step 6: Final answer
    x = 264,590.03

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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.