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Finding the Fourth Proportional to 123,735.06, 170,754.93 and 67,146.48

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Solution

The fourth proportional to 123,735.06, 170,754.93 and 67,146.48 is: 92,662.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,735.06 : 170,754.93 = 67,146.48 : x
  2. Step 2: Convert to fraction form
    123,735.06/170,754.93 = 67,146.48/x
  3. Step 3: Cross multiply
    123,735.06x = 170,754.93 × 67,146.48
  4. Step 4: Simplify right side
    123,735.06x = 11,465,592,492.15
  5. Step 5: Solve for x
    x = 11,465,592,492.15/123,735.06
  6. Step 6: Final answer
    x = 92,662.44

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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.