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Finding the Fourth Proportional to 317,781.58, 476,673.14 and 77,896.55

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Solution

The fourth proportional to 317,781.58, 476,673.14 and 77,896.55 is: 116,845.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,781.58 : 476,673.14 = 77,896.55 : x
  2. Step 2: Convert to fraction form
    317,781.58/476,673.14 = 77,896.55/x
  3. Step 3: Cross multiply
    317,781.58x = 476,673.14 × 77,896.55
  4. Step 4: Simplify right side
    317,781.58x = 37,131,195,119.56
  5. Step 5: Solve for x
    x = 37,131,195,119.56/317,781.58
  6. Step 6: Final answer
    x = 116,845.02

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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.