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Finding the Fourth Proportional to 476,104.80, 714,161.24 and 121,119.12

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Solution

The fourth proportional to 476,104.80, 714,161.24 and 121,119.12 is: 181,679.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,104.80 : 714,161.24 = 121,119.12 : x
  2. Step 2: Convert to fraction form
    476,104.80/714,161.24 = 121,119.12/x
  3. Step 3: Cross multiply
    476,104.80x = 714,161.24 × 121,119.12
  4. Step 4: Simplify right side
    476,104.80x = 86,498,580,926.91
  5. Step 5: Solve for x
    x = 86,498,580,926.91/476,104.80
  6. Step 6: Final answer
    x = 181,679.71

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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.