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Finding the Fourth Proportional to 80,483.60, 120,768.60 and 33,741.20

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Solution

The fourth proportional to 80,483.60, 120,768.60 and 33,741.20 is: 50,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,483.60 : 120,768.60 = 33,741.20 : x
  2. Step 2: Convert to fraction form
    80,483.60/120,768.60 = 33,741.20/x
  3. Step 3: Cross multiply
    80,483.60x = 120,768.60 × 33,741.20
  4. Step 4: Simplify right side
    80,483.60x = 4,074,877,486.32
  5. Step 5: Solve for x
    x = 4,074,877,486.32/80,483.60
  6. Step 6: Final answer
    x = 50,629.91

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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.