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Finding the Fourth Proportional to 404,080.80, 606,063.60 and 137,853.60

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Solution

The fourth proportional to 404,080.80, 606,063.60 and 137,853.60 is: 206,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,080.80 : 606,063.60 = 137,853.60 : x
  2. Step 2: Convert to fraction form
    404,080.80/606,063.60 = 137,853.60/x
  3. Step 3: Cross multiply
    404,080.80x = 606,063.60 × 137,853.60
  4. Step 4: Simplify right side
    404,080.80x = 83,548,049,088.96
  5. Step 5: Solve for x
    x = 83,548,049,088.96/404,080.80
  6. Step 6: Final answer
    x = 206,760.75

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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.