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Finding the Fourth Proportional to 317,452.61, 476,173.69 and 127,908.36

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Solution

The fourth proportional to 317,452.61, 476,173.69 and 127,908.36 is: 191,860.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,452.61 : 476,173.69 = 127,908.36 : x
  2. Step 2: Convert to fraction form
    317,452.61/476,173.69 = 127,908.36/x
  3. Step 3: Cross multiply
    317,452.61x = 476,173.69 × 127,908.36
  4. Step 4: Simplify right side
    317,452.61x = 60,906,595,443.28
  5. Step 5: Solve for x
    x = 60,906,595,443.28/317,452.61
  6. Step 6: Final answer
    x = 191,860.43

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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.