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Finding the Fourth Proportional to 123,670.68, 170,664.78 and 67,082.04

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Solution

The fourth proportional to 123,670.68, 170,664.78 and 67,082.04 is: 92,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,670.68 : 170,664.78 = 67,082.04 : x
  2. Step 2: Convert to fraction form
    123,670.68/170,664.78 = 67,082.04/x
  3. Step 3: Cross multiply
    123,670.68x = 170,664.78 × 67,082.04
  4. Step 4: Simplify right side
    123,670.68x = 11,448,541,598.55
  5. Step 5: Solve for x
    x = 11,448,541,598.55/123,670.68
  6. Step 6: Final answer
    x = 92,572.80

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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.