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Finding the Fourth Proportional to 404,626.40, 606,939.60 and 124,107.20

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Solution

The fourth proportional to 404,626.40, 606,939.60 and 124,107.20 is: 186,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,626.40 : 606,939.60 = 124,107.20 : x
  2. Step 2: Convert to fraction form
    404,626.40/606,939.60 = 124,107.20/x
  3. Step 3: Cross multiply
    404,626.40x = 606,939.60 × 124,107.20
  4. Step 4: Simplify right side
    404,626.40x = 75,325,574,325.12
  5. Step 5: Solve for x
    x = 75,325,574,325.12/404,626.40
  6. Step 6: Final answer
    x = 186,160.80

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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.