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Finding the Fourth Proportional to 143,205.76, 214,749.51 and 62,157.97

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Solution

The fourth proportional to 143,205.76, 214,749.51 and 62,157.97 is: 93,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,205.76 : 214,749.51 = 62,157.97 : x
  2. Step 2: Convert to fraction form
    143,205.76/214,749.51 = 62,157.97/x
  3. Step 3: Cross multiply
    143,205.76x = 214,749.51 × 62,157.97
  4. Step 4: Simplify right side
    143,205.76x = 13,348,393,600.09
  5. Step 5: Solve for x
    x = 13,348,393,600.09/143,205.76
  6. Step 6: Final answer
    x = 93,211.29

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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.