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Finding the Fourth Proportional to 127,107.01, 190,723.16 and 89,906.14

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Solution

The fourth proportional to 127,107.01, 190,723.16 and 89,906.14 is: 134,903.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,107.01 : 190,723.16 = 89,906.14 : x
  2. Step 2: Convert to fraction form
    127,107.01/190,723.16 = 89,906.14/x
  3. Step 3: Cross multiply
    127,107.01x = 190,723.16 × 89,906.14
  4. Step 4: Simplify right side
    127,107.01x = 17,147,183,124.20
  5. Step 5: Solve for x
    x = 17,147,183,124.20/127,107.01
  6. Step 6: Final answer
    x = 134,903.52

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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.