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Finding the Fourth Proportional to 143,523.31, 215,295.90 and 43,692.04

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Solution

The fourth proportional to 143,523.31, 215,295.90 and 43,692.04 is: 65,541.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,523.31 : 215,295.90 = 43,692.04 : x
  2. Step 2: Convert to fraction form
    143,523.31/215,295.90 = 43,692.04/x
  3. Step 3: Cross multiply
    143,523.31x = 215,295.90 × 43,692.04
  4. Step 4: Simplify right side
    143,523.31x = 9,406,717,074.64
  5. Step 5: Solve for x
    x = 9,406,717,074.64/143,523.31
  6. Step 6: Final answer
    x = 65,541.39

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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.