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Finding the Fourth Proportional to 124,478.48, 171,759.48 and 118,173.44

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Solution

The fourth proportional to 124,478.48, 171,759.48 and 118,173.44 is: 163,059.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,478.48 : 171,759.48 = 118,173.44 : x
  2. Step 2: Convert to fraction form
    124,478.48/171,759.48 = 118,173.44/x
  3. Step 3: Cross multiply
    124,478.48x = 171,759.48 × 118,173.44
  4. Step 4: Simplify right side
    124,478.48x = 20,297,408,604.21
  5. Step 5: Solve for x
    x = 20,297,408,604.21/124,478.48
  6. Step 6: Final answer
    x = 163,059.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.