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Finding the Fourth Proportional to 186,984.80, 279,820.44 and 161,003.36

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Solution

The fourth proportional to 186,984.80, 279,820.44 and 161,003.36 is: 240,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,984.80 : 279,820.44 = 161,003.36 : x
  2. Step 2: Convert to fraction form
    186,984.80/279,820.44 = 161,003.36/x
  3. Step 3: Cross multiply
    186,984.80x = 279,820.44 × 161,003.36
  4. Step 4: Simplify right side
    186,984.80x = 45,052,031,036.68
  5. Step 5: Solve for x
    x = 45,052,031,036.68/186,984.80
  6. Step 6: Final answer
    x = 240,939.54

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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.