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Finding the Fourth Proportional to 404,690.04, 606,981.78 and 124,183.80

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Solution

The fourth proportional to 404,690.04, 606,981.78 and 124,183.80 is: 186,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,690.04 : 606,981.78 = 124,183.80 : x
  2. Step 2: Convert to fraction form
    404,690.04/606,981.78 = 124,183.80/x
  3. Step 3: Cross multiply
    404,690.04x = 606,981.78 × 124,183.80
  4. Step 4: Simplify right side
    404,690.04x = 75,377,303,971.16
  5. Step 5: Solve for x
    x = 75,377,303,971.16/404,690.04
  6. Step 6: Final answer
    x = 186,259.35

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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.