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Finding the Fourth Proportional to 118,596.26, 177,973.17 and 55,421.27

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Solution

The fourth proportional to 118,596.26, 177,973.17 and 55,421.27 is: 83,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,596.26 : 177,973.17 = 55,421.27 : x
  2. Step 2: Convert to fraction form
    118,596.26/177,973.17 = 55,421.27/x
  3. Step 3: Cross multiply
    118,596.26x = 177,973.17 × 55,421.27
  4. Step 4: Simplify right side
    118,596.26x = 9,863,499,107.33
  5. Step 5: Solve for x
    x = 9,863,499,107.33/118,596.26
  6. Step 6: Final answer
    x = 83,168.72

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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.