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Finding the Fourth Proportional to 268,625.88, 403,079.94 and 118,969.56

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Solution

The fourth proportional to 268,625.88, 403,079.94 and 118,969.56 is: 178,516.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,625.88 : 403,079.94 = 118,969.56 : x
  2. Step 2: Convert to fraction form
    268,625.88/403,079.94 = 118,969.56/x
  3. Step 3: Cross multiply
    268,625.88x = 403,079.94 × 118,969.56
  4. Step 4: Simplify right side
    268,625.88x = 47,954,243,106.63
  5. Step 5: Solve for x
    x = 47,954,243,106.63/268,625.88
  6. Step 6: Final answer
    x = 178,516.84

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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.