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Finding the Fourth Proportional to 123,692.56, 170,695.74 and 69,976.46

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Solution

The fourth proportional to 123,692.56, 170,695.74 and 69,976.46 is: 96,567.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,692.56 : 170,695.74 = 69,976.46 : x
  2. Step 2: Convert to fraction form
    123,692.56/170,695.74 = 69,976.46/x
  3. Step 3: Cross multiply
    123,692.56x = 170,695.74 × 69,976.46
  4. Step 4: Simplify right side
    123,692.56x = 11,944,683,622.28
  5. Step 5: Solve for x
    x = 11,944,683,622.28/123,692.56
  6. Step 6: Final answer
    x = 96,567.52

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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.