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Finding the Fourth Proportional to 143,909.88, 215,865.34 and 44,069.64

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Solution

The fourth proportional to 143,909.88, 215,865.34 and 44,069.64 is: 66,104.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,909.88 : 215,865.34 = 44,069.64 : x
  2. Step 2: Convert to fraction form
    143,909.88/215,865.34 = 44,069.64/x
  3. Step 3: Cross multiply
    143,909.88x = 215,865.34 × 44,069.64
  4. Step 4: Simplify right side
    143,909.88x = 9,513,106,902.61
  5. Step 5: Solve for x
    x = 9,513,106,902.61/143,909.88
  6. Step 6: Final answer
    x = 66,104.61

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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.