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Finding the Fourth Proportional to 207,361.88, 286,069.26 and 126,792.76

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Solution

The fourth proportional to 207,361.88, 286,069.26 and 126,792.76 is: 174,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,361.88 : 286,069.26 = 126,792.76 : x
  2. Step 2: Convert to fraction form
    207,361.88/286,069.26 = 126,792.76/x
  3. Step 3: Cross multiply
    207,361.88x = 286,069.26 × 126,792.76
  4. Step 4: Simplify right side
    207,361.88x = 36,271,511,026.56
  5. Step 5: Solve for x
    x = 36,271,511,026.56/207,361.88
  6. Step 6: Final answer
    x = 174,918.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.