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Finding the Fourth Proportional to 137,953.44, 206,820.18 and 126,882.36

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Solution

The fourth proportional to 137,953.44, 206,820.18 and 126,882.36 is: 190,222.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,953.44 : 206,820.18 = 126,882.36 : x
  2. Step 2: Convert to fraction form
    137,953.44/206,820.18 = 126,882.36/x
  3. Step 3: Cross multiply
    137,953.44x = 206,820.18 × 126,882.36
  4. Step 4: Simplify right side
    137,953.44x = 26,241,832,534.02
  5. Step 5: Solve for x
    x = 26,241,832,534.02/137,953.44
  6. Step 6: Final answer
    x = 190,222.39

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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.