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Finding the Fourth Proportional to 404,454.99, 606,771.05 and 123,994.11

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Solution

The fourth proportional to 404,454.99, 606,771.05 and 123,994.11 is: 186,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,454.99 : 606,771.05 = 123,994.11 : x
  2. Step 2: Convert to fraction form
    404,454.99/606,771.05 = 123,994.11/x
  3. Step 3: Cross multiply
    404,454.99x = 606,771.05 × 123,994.11
  4. Step 4: Simplify right side
    404,454.99x = 75,236,035,698.55
  5. Step 5: Solve for x
    x = 75,236,035,698.55/404,454.99
  6. Step 6: Final answer
    x = 186,018.31

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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.