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Finding the Fourth Proportional to 401,368.80, 601,761.60 and 164,589.60

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Solution

The fourth proportional to 401,368.80, 601,761.60 and 164,589.60 is: 246,764.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,368.80 : 601,761.60 = 164,589.60 : x
  2. Step 2: Convert to fraction form
    401,368.80/601,761.60 = 164,589.60/x
  3. Step 3: Cross multiply
    401,368.80x = 601,761.60 × 164,589.60
  4. Step 4: Simplify right side
    401,368.80x = 99,043,701,039.36
  5. Step 5: Solve for x
    x = 99,043,701,039.36/401,368.80
  6. Step 6: Final answer
    x = 246,764.82

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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.