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Finding the Fourth Proportional to 103,493.64, 155,277.90 and 50,940.03

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Solution

The fourth proportional to 103,493.64, 155,277.90 and 50,940.03 is: 76,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,493.64 : 155,277.90 = 50,940.03 : x
  2. Step 2: Convert to fraction form
    103,493.64/155,277.90 = 50,940.03/x
  3. Step 3: Cross multiply
    103,493.64x = 155,277.90 × 50,940.03
  4. Step 4: Simplify right side
    103,493.64x = 7,909,860,884.34
  5. Step 5: Solve for x
    x = 7,909,860,884.34/103,493.64
  6. Step 6: Final answer
    x = 76,428.47

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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.