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Finding the Fourth Proportional to 167,980.90, 231,813.66 and 92,529.40

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Solution

The fourth proportional to 167,980.90, 231,813.66 and 92,529.40 is: 127,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,980.90 : 231,813.66 = 92,529.40 : x
  2. Step 2: Convert to fraction form
    167,980.90/231,813.66 = 92,529.40/x
  3. Step 3: Cross multiply
    167,980.90x = 231,813.66 × 92,529.40
  4. Step 4: Simplify right side
    167,980.90x = 21,449,578,871.60
  5. Step 5: Solve for x
    x = 21,449,578,871.60/167,980.90
  6. Step 6: Final answer
    x = 127,690.58

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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.