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Finding the Fourth Proportional to 379,556.66, 569,148.96 and 126,750.26

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Solution

The fourth proportional to 379,556.66, 569,148.96 and 126,750.26 is: 190,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,556.66 : 569,148.96 = 126,750.26 : x
  2. Step 2: Convert to fraction form
    379,556.66/569,148.96 = 126,750.26/x
  3. Step 3: Cross multiply
    379,556.66x = 569,148.96 × 126,750.26
  4. Step 4: Simplify right side
    379,556.66x = 72,139,778,658.73
  5. Step 5: Solve for x
    x = 72,139,778,658.73/379,556.66
  6. Step 6: Final answer
    x = 190,063.27

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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.