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Finding the Fourth Proportional to 159,806.52, 239,765.67 and 71,051.58

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Solution

The fourth proportional to 159,806.52, 239,765.67 and 71,051.58 is: 106,602.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,806.52 : 239,765.67 = 71,051.58 : x
  2. Step 2: Convert to fraction form
    159,806.52/239,765.67 = 71,051.58/x
  3. Step 3: Cross multiply
    159,806.52x = 239,765.67 × 71,051.58
  4. Step 4: Simplify right side
    159,806.52x = 17,035,729,683.26
  5. Step 5: Solve for x
    x = 17,035,729,683.26/159,806.52
  6. Step 6: Final answer
    x = 106,602.22

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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.