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Finding the Fourth Proportional to 143,909.34, 215,733.33 and 50,364.06

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Solution

The fourth proportional to 143,909.34, 215,733.33 and 50,364.06 is: 75,500.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,909.34 : 215,733.33 = 50,364.06 : x
  2. Step 2: Convert to fraction form
    143,909.34/215,733.33 = 50,364.06/x
  3. Step 3: Cross multiply
    143,909.34x = 215,733.33 × 50,364.06
  4. Step 4: Simplify right side
    143,909.34x = 10,865,206,376.12
  5. Step 5: Solve for x
    x = 10,865,206,376.12/143,909.34
  6. Step 6: Final answer
    x = 75,500.36

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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.