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Finding the Fourth Proportional to 127,134.36, 190,710.66 and 33,639

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Solution

The fourth proportional to 127,134.36, 190,710.66 and 33,639 is: 50,460.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,134.36 : 190,710.66 = 33,639 : x
  2. Step 2: Convert to fraction form
    127,134.36/190,710.66 = 33,639/x
  3. Step 3: Cross multiply
    127,134.36x = 190,710.66 × 33,639
  4. Step 4: Simplify right side
    127,134.36x = 6,415,315,891.74
  5. Step 5: Solve for x
    x = 6,415,315,891.74/127,134.36
  6. Step 6: Final answer
    x = 50,460.91

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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.