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Finding the Fourth Proportional to 446,003.45, 668,999.17 and 109,046.99

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Solution

The fourth proportional to 446,003.45, 668,999.17 and 109,046.99 is: 163,569.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,003.45 : 668,999.17 = 109,046.99 : x
  2. Step 2: Convert to fraction form
    446,003.45/668,999.17 = 109,046.99/x
  3. Step 3: Cross multiply
    446,003.45x = 668,999.17 × 109,046.99
  4. Step 4: Simplify right side
    446,003.45x = 72,952,347,609.81
  5. Step 5: Solve for x
    x = 72,952,347,609.81/446,003.45
  6. Step 6: Final answer
    x = 163,569.02

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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.