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Finding the Fourth Proportional to 321,935.74, 444,291.48 and 178,698.17

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Solution

The fourth proportional to 321,935.74, 444,291.48 and 178,698.17 is: 246,614.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,935.74 : 444,291.48 = 178,698.17 : x
  2. Step 2: Convert to fraction form
    321,935.74/444,291.48 = 178,698.17/x
  3. Step 3: Cross multiply
    321,935.74x = 444,291.48 × 178,698.17
  4. Step 4: Simplify right side
    321,935.74x = 79,394,075,533.32
  5. Step 5: Solve for x
    x = 79,394,075,533.32/321,935.74
  6. Step 6: Final answer
    x = 246,614.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.