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Finding the Fourth Proportional to 123,062.12, 169,825.80 and 66,473.50

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Solution

The fourth proportional to 123,062.12, 169,825.80 and 66,473.50 is: 91,733.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,062.12 : 169,825.80 = 66,473.50 : x
  2. Step 2: Convert to fraction form
    123,062.12/169,825.80 = 66,473.50/x
  3. Step 3: Cross multiply
    123,062.12x = 169,825.80 × 66,473.50
  4. Step 4: Simplify right side
    123,062.12x = 11,288,915,316.30
  5. Step 5: Solve for x
    x = 11,288,915,316.30/123,062.12
  6. Step 6: Final answer
    x = 91,733.47

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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.