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Finding the Fourth Proportional to 317,266.36, 476,085.32 and 127,697.20

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Solution

The fourth proportional to 317,266.36, 476,085.32 and 127,697.20 is: 191,620.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,266.36 : 476,085.32 = 127,697.20 : x
  2. Step 2: Convert to fraction form
    317,266.36/476,085.32 = 127,697.20/x
  3. Step 3: Cross multiply
    317,266.36x = 476,085.32 × 127,697.20
  4. Step 4: Simplify right side
    317,266.36x = 60,794,762,325.10
  5. Step 5: Solve for x
    x = 60,794,762,325.10/317,266.36
  6. Step 6: Final answer
    x = 191,620.57

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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.