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Finding the Fourth Proportional to 317,263.36, 476,080.78 and 127,694.20

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Solution

The fourth proportional to 317,263.36, 476,080.78 and 127,694.20 is: 191,616.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,263.36 : 476,080.78 = 127,694.20 : x
  2. Step 2: Convert to fraction form
    317,263.36/476,080.78 = 127,694.20/x
  3. Step 3: Cross multiply
    317,263.36x = 476,080.78 × 127,694.20
  4. Step 4: Simplify right side
    317,263.36x = 60,792,754,337.48
  5. Step 5: Solve for x
    x = 60,792,754,337.48/317,263.36
  6. Step 6: Final answer
    x = 191,616.06

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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.