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Finding the Fourth Proportional to 123,258.44, 170,096.66 and 66,669.80

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Solution

The fourth proportional to 123,258.44, 170,096.66 and 66,669.80 is: 92,004.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,258.44 : 170,096.66 = 66,669.80 : x
  2. Step 2: Convert to fraction form
    123,258.44/170,096.66 = 66,669.80/x
  3. Step 3: Cross multiply
    123,258.44x = 170,096.66 × 66,669.80
  4. Step 4: Simplify right side
    123,258.44x = 11,340,310,302.87
  5. Step 5: Solve for x
    x = 11,340,310,302.87/123,258.44
  6. Step 6: Final answer
    x = 92,004.33

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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.