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Finding the Fourth Proportional to 321,950.40, 482,536.80 and 164,097.60

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Solution

The fourth proportional to 321,950.40, 482,536.80 and 164,097.60 is: 245,948.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,950.40 : 482,536.80 = 164,097.60 : x
  2. Step 2: Convert to fraction form
    321,950.40/482,536.80 = 164,097.60/x
  3. Step 3: Cross multiply
    321,950.40x = 482,536.80 × 164,097.60
  4. Step 4: Simplify right side
    321,950.40x = 79,183,130,791.68
  5. Step 5: Solve for x
    x = 79,183,130,791.68/321,950.40
  6. Step 6: Final answer
    x = 245,948.23

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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.