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Finding the Fourth Proportional to 123,656.94, 170,650.44 and 69,940.91

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Solution

The fourth proportional to 123,656.94, 170,650.44 and 69,940.91 is: 96,520.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,656.94 : 170,650.44 = 69,940.91 : x
  2. Step 2: Convert to fraction form
    123,656.94/170,650.44 = 69,940.91/x
  3. Step 3: Cross multiply
    123,656.94x = 170,650.44 × 69,940.91
  4. Step 4: Simplify right side
    123,656.94x = 11,935,446,212.25
  5. Step 5: Solve for x
    x = 11,935,446,212.25/123,656.94
  6. Step 6: Final answer
    x = 96,520.63

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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.