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Finding the Fourth Proportional to 401,172.80, 601,672.80 and 176,532.80

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Solution

The fourth proportional to 401,172.80, 601,672.80 and 176,532.80 is: 264,761.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,172.80 : 601,672.80 = 176,532.80 : x
  2. Step 2: Convert to fraction form
    401,172.80/601,672.80 = 176,532.80/x
  3. Step 3: Cross multiply
    401,172.80x = 601,672.80 × 176,532.80
  4. Step 4: Simplify right side
    401,172.80x = 106,214,984,067.84
  5. Step 5: Solve for x
    x = 106,214,984,067.84/401,172.80
  6. Step 6: Final answer
    x = 264,761.18

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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.