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Finding the Fourth Proportional to 66,808.53, 100,203.50 and 16,885.53

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Solution

The fourth proportional to 66,808.53, 100,203.50 and 16,885.53 is: 25,325.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,808.53 : 100,203.50 = 16,885.53 : x
  2. Step 2: Convert to fraction form
    66,808.53/100,203.50 = 16,885.53/x
  3. Step 3: Cross multiply
    66,808.53x = 100,203.50 × 16,885.53
  4. Step 4: Simplify right side
    66,808.53x = 1,691,989,120.93
  5. Step 5: Solve for x
    x = 1,691,989,120.93/66,808.53
  6. Step 6: Final answer
    x = 25,325.94

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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.