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Finding the Fourth Proportional to 123,323.16, 170,186.44 and 66,734.56

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Solution

The fourth proportional to 123,323.16, 170,186.44 and 66,734.56 is: 92,093.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,323.16 : 170,186.44 = 66,734.56 : x
  2. Step 2: Convert to fraction form
    123,323.16/170,186.44 = 66,734.56/x
  3. Step 3: Cross multiply
    123,323.16x = 170,186.44 × 66,734.56
  4. Step 4: Simplify right side
    123,323.16x = 11,357,317,191.37
  5. Step 5: Solve for x
    x = 11,357,317,191.37/123,323.16
  6. Step 6: Final answer
    x = 92,093.95

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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.