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Finding the Fourth Proportional to 123,695.88, 170,700.64 and 67,107.26

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Solution

The fourth proportional to 123,695.88, 170,700.64 and 67,107.26 is: 92,608.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,695.88 : 170,700.64 = 67,107.26 : x
  2. Step 2: Convert to fraction form
    123,695.88/170,700.64 = 67,107.26/x
  3. Step 3: Cross multiply
    123,695.88x = 170,700.64 × 67,107.26
  4. Step 4: Simplify right side
    123,695.88x = 11,455,251,209.38
  5. Step 5: Solve for x
    x = 11,455,251,209.38/123,695.88
  6. Step 6: Final answer
    x = 92,608.19

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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.