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Finding the Fourth Proportional to 123,673.68, 170,668.92 and 67,085.04

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Solution

The fourth proportional to 123,673.68, 170,668.92 and 67,085.04 is: 92,576.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,673.68 : 170,668.92 = 67,085.04 : x
  2. Step 2: Convert to fraction form
    123,673.68/170,668.92 = 67,085.04/x
  3. Step 3: Cross multiply
    123,673.68x = 170,668.92 × 67,085.04
  4. Step 4: Simplify right side
    123,673.68x = 11,449,331,324.96
  5. Step 5: Solve for x
    x = 11,449,331,324.96/123,673.68
  6. Step 6: Final answer
    x = 92,576.94

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1.5x scale

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.