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Finding the Fourth Proportional to 448,064.60, 672,215.70 and 195,236.60

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Solution

The fourth proportional to 448,064.60, 672,215.70 and 195,236.60 is: 292,906.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,064.60 : 672,215.70 = 195,236.60 : x
  2. Step 2: Convert to fraction form
    448,064.60/672,215.70 = 195,236.60/x
  3. Step 3: Cross multiply
    448,064.60x = 672,215.70 × 195,236.60
  4. Step 4: Simplify right side
    448,064.60x = 131,241,107,734.62
  5. Step 5: Solve for x
    x = 131,241,107,734.62/448,064.60
  6. Step 6: Final answer
    x = 292,906.67

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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.