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Finding the Fourth Proportional to 123,522.63, 170,461.43 and 66,934

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Solution

The fourth proportional to 123,522.63, 170,461.43 and 66,934 is: 92,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,522.63 : 170,461.43 = 66,934 : x
  2. Step 2: Convert to fraction form
    123,522.63/170,461.43 = 66,934/x
  3. Step 3: Cross multiply
    123,522.63x = 170,461.43 × 66,934
  4. Step 4: Simplify right side
    123,522.63x = 11,409,665,355.62
  5. Step 5: Solve for x
    x = 11,409,665,355.62/123,522.63
  6. Step 6: Final answer
    x = 92,369.03

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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.