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Finding the Fourth Proportional to 131,103.60, 196,669.80 and 48,015.60

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Solution

The fourth proportional to 131,103.60, 196,669.80 and 48,015.60 is: 72,028.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,103.60 : 196,669.80 = 48,015.60 : x
  2. Step 2: Convert to fraction form
    131,103.60/196,669.80 = 48,015.60/x
  3. Step 3: Cross multiply
    131,103.60x = 196,669.80 × 48,015.60
  4. Step 4: Simplify right side
    131,103.60x = 9,443,218,448.88
  5. Step 5: Solve for x
    x = 9,443,218,448.88/131,103.60
  6. Step 6: Final answer
    x = 72,028.67

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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.