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Finding the Fourth Proportional to 201,663.20, 302,494.80 and 174,015.20

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Solution

The fourth proportional to 201,663.20, 302,494.80 and 174,015.20 is: 261,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,663.20 : 302,494.80 = 174,015.20 : x
  2. Step 2: Convert to fraction form
    201,663.20/302,494.80 = 174,015.20/x
  3. Step 3: Cross multiply
    201,663.20x = 302,494.80 × 174,015.20
  4. Step 4: Simplify right side
    201,663.20x = 52,638,693,120.96
  5. Step 5: Solve for x
    x = 52,638,693,120.96/201,663.20
  6. Step 6: Final answer
    x = 261,022.80

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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.