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Finding the Fourth Proportional to 123,324.69, 170,188.50 and 66,736.05

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Solution

The fourth proportional to 123,324.69, 170,188.50 and 66,736.05 is: 92,095.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,324.69 : 170,188.50 = 66,736.05 : x
  2. Step 2: Convert to fraction form
    123,324.69/170,188.50 = 66,736.05/x
  3. Step 3: Cross multiply
    123,324.69x = 170,188.50 × 66,736.05
  4. Step 4: Simplify right side
    123,324.69x = 11,357,708,245.43
  5. Step 5: Solve for x
    x = 11,357,708,245.43/123,324.69
  6. Step 6: Final answer
    x = 92,095.98

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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.