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Finding the Fourth Proportional to 352,879.64, 486,966.88 and 191,735.84

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Solution

The fourth proportional to 352,879.64, 486,966.88 and 191,735.84 is: 264,591.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,879.64 : 486,966.88 = 191,735.84 : x
  2. Step 2: Convert to fraction form
    352,879.64/486,966.88 = 191,735.84/x
  3. Step 3: Cross multiply
    352,879.64x = 486,966.88 × 191,735.84
  4. Step 4: Simplify right side
    352,879.64x = 93,369,001,354.14
  5. Step 5: Solve for x
    x = 93,369,001,354.14/352,879.64
  6. Step 6: Final answer
    x = 264,591.64

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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.