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Finding the Fourth Proportional to 123,612.92, 170,584.62 and 67,023.32

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Solution

The fourth proportional to 123,612.92, 170,584.62 and 67,023.32 is: 92,491.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,612.92 : 170,584.62 = 67,023.32 : x
  2. Step 2: Convert to fraction form
    123,612.92/170,584.62 = 67,023.32/x
  3. Step 3: Cross multiply
    123,612.92x = 170,584.62 × 67,023.32
  4. Step 4: Simplify right side
    123,612.92x = 11,433,147,573.34
  5. Step 5: Solve for x
    x = 11,433,147,573.34/123,612.92
  6. Step 6: Final answer
    x = 92,491.53

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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.