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Finding the Fourth Proportional to 167,693.88, 231,420.56 and 91,214.68

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Solution

The fourth proportional to 167,693.88, 231,420.56 and 91,214.68 is: 125,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,693.88 : 231,420.56 = 91,214.68 : x
  2. Step 2: Convert to fraction form
    167,693.88/231,420.56 = 91,214.68/x
  3. Step 3: Cross multiply
    167,693.88x = 231,420.56 × 91,214.68
  4. Step 4: Simplify right side
    167,693.88x = 21,108,952,325.82
  5. Step 5: Solve for x
    x = 21,108,952,325.82/167,693.88
  6. Step 6: Final answer
    x = 125,877.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.