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Finding the Fourth Proportional to 79,015.20, 118,537.56 and 26,424.96

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Solution

The fourth proportional to 79,015.20, 118,537.56 and 26,424.96 is: 39,642.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,015.20 : 118,537.56 = 26,424.96 : x
  2. Step 2: Convert to fraction form
    79,015.20/118,537.56 = 26,424.96/x
  3. Step 3: Cross multiply
    79,015.20x = 118,537.56 × 26,424.96
  4. Step 4: Simplify right side
    79,015.20x = 3,132,350,281.50
  5. Step 5: Solve for x
    x = 3,132,350,281.50/79,015.20
  6. Step 6: Final answer
    x = 39,642.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.