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Finding the Fourth Proportional to 168,819.86, 253,136.31 and 69,050.11

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Solution

The fourth proportional to 168,819.86, 253,136.31 and 69,050.11 is: 103,536.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,819.86 : 253,136.31 = 69,050.11 : x
  2. Step 2: Convert to fraction form
    168,819.86/253,136.31 = 69,050.11/x
  3. Step 3: Cross multiply
    168,819.86x = 253,136.31 × 69,050.11
  4. Step 4: Simplify right side
    168,819.86x = 17,479,089,705.24
  5. Step 5: Solve for x
    x = 17,479,089,705.24/168,819.86
  6. Step 6: Final answer
    x = 103,536.93

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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.