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Finding the Fourth Proportional to 353,093.44, 529,672.80 and 100,379.20

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Solution

The fourth proportional to 353,093.44, 529,672.80 and 100,379.20 is: 150,578.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,093.44 : 529,672.80 = 100,379.20 : x
  2. Step 2: Convert to fraction form
    353,093.44/529,672.80 = 100,379.20/x
  3. Step 3: Cross multiply
    353,093.44x = 529,672.80 × 100,379.20
  4. Step 4: Simplify right side
    353,093.44x = 53,168,131,925.76
  5. Step 5: Solve for x
    x = 53,168,131,925.76/353,093.44
  6. Step 6: Final answer
    x = 150,578.08

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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.