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Finding the Fourth Proportional to 79,182.37, 118,608.29 and 47,491.93

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Solution

The fourth proportional to 79,182.37, 118,608.29 and 47,491.93 is: 71,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,182.37 : 118,608.29 = 47,491.93 : x
  2. Step 2: Convert to fraction form
    79,182.37/118,608.29 = 47,491.93/x
  3. Step 3: Cross multiply
    79,182.37x = 118,608.29 × 47,491.93
  4. Step 4: Simplify right side
    79,182.37x = 5,632,935,775.60
  5. Step 5: Solve for x
    x = 5,632,935,775.60/79,182.37
  6. Step 6: Final answer
    x = 71,138.77

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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.