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Finding the Fourth Proportional to 446,078.88, 669,190.14 and 146,489.04

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Solution

The fourth proportional to 446,078.88, 669,190.14 and 146,489.04 is: 219,757.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,078.88 : 669,190.14 = 146,489.04 : x
  2. Step 2: Convert to fraction form
    446,078.88/669,190.14 = 146,489.04/x
  3. Step 3: Cross multiply
    446,078.88x = 669,190.14 × 146,489.04
  4. Step 4: Simplify right side
    446,078.88x = 98,029,021,186.07
  5. Step 5: Solve for x
    x = 98,029,021,186.07/446,078.88
  6. Step 6: Final answer
    x = 219,757.15

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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.