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Finding the Fourth Proportional to 507,377.37, 761,128.60 and 165,812.73

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Solution

The fourth proportional to 507,377.37, 761,128.60 and 165,812.73 is: 248,739.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,377.37 : 761,128.60 = 165,812.73 : x
  2. Step 2: Convert to fraction form
    507,377.37/761,128.60 = 165,812.73/x
  3. Step 3: Cross multiply
    507,377.37x = 761,128.60 × 165,812.73
  4. Step 4: Simplify right side
    507,377.37x = 126,204,811,047.08
  5. Step 5: Solve for x
    x = 126,204,811,047.08/507,377.37
  6. Step 6: Final answer
    x = 248,739.53

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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.