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Finding the Fourth Proportional to 211,158.62, 316,735.39 and 84,796.59

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Solution

The fourth proportional to 211,158.62, 316,735.39 and 84,796.59 is: 127,193.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,158.62 : 316,735.39 = 84,796.59 : x
  2. Step 2: Convert to fraction form
    211,158.62/316,735.39 = 84,796.59/x
  3. Step 3: Cross multiply
    211,158.62x = 316,735.39 × 84,796.59
  4. Step 4: Simplify right side
    211,158.62x = 26,858,081,004.32
  5. Step 5: Solve for x
    x = 26,858,081,004.32/211,158.62
  6. Step 6: Final answer
    x = 127,193.86

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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.