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Finding the Fourth Proportional to 123,544.56, 170,486.91 and 66,954.72

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Solution

The fourth proportional to 123,544.56, 170,486.91 and 66,954.72 is: 92,395.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,544.56 : 170,486.91 = 66,954.72 : x
  2. Step 2: Convert to fraction form
    123,544.56/170,486.91 = 66,954.72/x
  3. Step 3: Cross multiply
    123,544.56x = 170,486.91 × 66,954.72
  4. Step 4: Simplify right side
    123,544.56x = 11,414,903,322.72
  5. Step 5: Solve for x
    x = 11,414,903,322.72/123,544.56
  6. Step 6: Final answer
    x = 92,395.03

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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.