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Finding the Fourth Proportional to 123,647.90, 170,634.30 and 67,059.32

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Solution

The fourth proportional to 123,647.90, 170,634.30 and 67,059.32 is: 92,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,647.90 : 170,634.30 = 67,059.32 : x
  2. Step 2: Convert to fraction form
    123,647.90/170,634.30 = 67,059.32/x
  3. Step 3: Cross multiply
    123,647.90x = 170,634.30 × 67,059.32
  4. Step 4: Simplify right side
    123,647.90x = 11,442,620,126.68
  5. Step 5: Solve for x
    x = 11,442,620,126.68/123,647.90
  6. Step 6: Final answer
    x = 92,541.97

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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.