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Finding the Fourth Proportional to 143,692.68, 198,227.22 and 111,642.24

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Solution

The fourth proportional to 143,692.68, 198,227.22 and 111,642.24 is: 154,012.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,692.68 : 198,227.22 = 111,642.24 : x
  2. Step 2: Convert to fraction form
    143,692.68/198,227.22 = 111,642.24/x
  3. Step 3: Cross multiply
    143,692.68x = 198,227.22 × 111,642.24
  4. Step 4: Simplify right side
    143,692.68x = 22,130,530,869.77
  5. Step 5: Solve for x
    x = 22,130,530,869.77/143,692.68
  6. Step 6: Final answer
    x = 154,012.93

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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.