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Finding the Fourth Proportional to 404,221.80, 606,332.70 and 119,922.60

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Solution

The fourth proportional to 404,221.80, 606,332.70 and 119,922.60 is: 179,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,221.80 : 606,332.70 = 119,922.60 : x
  2. Step 2: Convert to fraction form
    404,221.80/606,332.70 = 119,922.60/x
  3. Step 3: Cross multiply
    404,221.80x = 606,332.70 × 119,922.60
  4. Step 4: Simplify right side
    404,221.80x = 72,712,993,849.02
  5. Step 5: Solve for x
    x = 72,712,993,849.02/404,221.80
  6. Step 6: Final answer
    x = 179,883.90

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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.