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Finding the Fourth Proportional to 317,427.34, 476,131.78 and 92,793.05

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Solution

The fourth proportional to 317,427.34, 476,131.78 and 92,793.05 is: 139,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,427.34 : 476,131.78 = 92,793.05 : x
  2. Step 2: Convert to fraction form
    317,427.34/476,131.78 = 92,793.05/x
  3. Step 3: Cross multiply
    317,427.34x = 476,131.78 × 92,793.05
  4. Step 4: Simplify right side
    317,427.34x = 44,181,720,667.10
  5. Step 5: Solve for x
    x = 44,181,720,667.10/317,427.34
  6. Step 6: Final answer
    x = 139,186.88

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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.