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Finding the Fourth Proportional to 352,765.80, 486,817.92 and 191,623.32

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Solution

The fourth proportional to 352,765.80, 486,817.92 and 191,623.32 is: 264,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,765.80 : 486,817.92 = 191,623.32 : x
  2. Step 2: Convert to fraction form
    352,765.80/486,817.92 = 191,623.32/x
  3. Step 3: Cross multiply
    352,765.80x = 486,817.92 × 191,623.32
  4. Step 4: Simplify right side
    352,765.80x = 93,285,666,065.89
  5. Step 5: Solve for x
    x = 93,285,666,065.89/352,765.80
  6. Step 6: Final answer
    x = 264,440.79

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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.