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Finding the Fourth Proportional to 123,695.49, 170,700.21 and 67,107.27

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Solution

The fourth proportional to 123,695.49, 170,700.21 and 67,107.27 is: 92,608.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,695.49 : 170,700.21 = 67,107.27 : x
  2. Step 2: Convert to fraction form
    123,695.49/170,700.21 = 67,107.27/x
  3. Step 3: Cross multiply
    123,695.49x = 170,700.21 × 67,107.27
  4. Step 4: Simplify right side
    123,695.49x = 11,455,225,081.53
  5. Step 5: Solve for x
    x = 11,455,225,081.53/123,695.49
  6. Step 6: Final answer
    x = 92,608.27

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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.