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Finding the Fourth Proportional to 143,909.69, 215,865.06 and 44,069.49

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Solution

The fourth proportional to 143,909.69, 215,865.06 and 44,069.49 is: 66,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,909.69 : 215,865.06 = 44,069.49 : x
  2. Step 2: Convert to fraction form
    143,909.69/215,865.06 = 44,069.49/x
  3. Step 3: Cross multiply
    143,909.69x = 215,865.06 × 44,069.49
  4. Step 4: Simplify right side
    143,909.69x = 9,513,063,103.02
  5. Step 5: Solve for x
    x = 9,513,063,103.02/143,909.69
  6. Step 6: Final answer
    x = 66,104.40

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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.