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Finding the Fourth Proportional to 202,763.21, 304,112.90 and 127,653.41

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Solution

The fourth proportional to 202,763.21, 304,112.90 and 127,653.41 is: 191,460.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,763.21 : 304,112.90 = 127,653.41 : x
  2. Step 2: Convert to fraction form
    202,763.21/304,112.90 = 127,653.41/x
  3. Step 3: Cross multiply
    202,763.21x = 304,112.90 × 127,653.41
  4. Step 4: Simplify right side
    202,763.21x = 38,821,049,789.40
  5. Step 5: Solve for x
    x = 38,821,049,789.40/202,763.21
  6. Step 6: Final answer
    x = 191,460.03

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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.