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Finding the Fourth Proportional to 143,692.33, 215,538.49 and 43,853.03

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Solution

The fourth proportional to 143,692.33, 215,538.49 and 43,853.03 is: 65,779.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,692.33 : 215,538.49 = 43,853.03 : x
  2. Step 2: Convert to fraction form
    143,692.33/215,538.49 = 43,853.03/x
  3. Step 3: Cross multiply
    143,692.33x = 215,538.49 × 43,853.03
  4. Step 4: Simplify right side
    143,692.33x = 9,452,015,868.12
  5. Step 5: Solve for x
    x = 9,452,015,868.12/143,692.33
  6. Step 6: Final answer
    x = 65,779.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.