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Finding the Fourth Proportional to 84,835.25, 127,231.84 and 28,674.11

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Solution

The fourth proportional to 84,835.25, 127,231.84 and 28,674.11 is: 43,004.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,835.25 : 127,231.84 = 28,674.11 : x
  2. Step 2: Convert to fraction form
    84,835.25/127,231.84 = 28,674.11/x
  3. Step 3: Cross multiply
    84,835.25x = 127,231.84 × 28,674.11
  4. Step 4: Simplify right side
    84,835.25x = 3,648,260,022.06
  5. Step 5: Solve for x
    x = 3,648,260,022.06/84,835.25
  6. Step 6: Final answer
    x = 43,004.06

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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.