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Finding the Fourth Proportional to 127,097.52, 190,647.74 and 38,351.79

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Solution

The fourth proportional to 127,097.52, 190,647.74 and 38,351.79 is: 57,528.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,097.52 : 190,647.74 = 38,351.79 : x
  2. Step 2: Convert to fraction form
    127,097.52/190,647.74 = 38,351.79/x
  3. Step 3: Cross multiply
    127,097.52x = 190,647.74 × 38,351.79
  4. Step 4: Simplify right side
    127,097.52x = 7,311,682,184.33
  5. Step 5: Solve for x
    x = 7,311,682,184.33/127,097.52
  6. Step 6: Final answer
    x = 57,528.13

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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.