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Finding the Fourth Proportional to 367,882.70, 507,632.57 and 212,860.62

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Solution

The fourth proportional to 367,882.70, 507,632.57 and 212,860.62 is: 293,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,882.70 : 507,632.57 = 212,860.62 : x
  2. Step 2: Convert to fraction form
    367,882.70/507,632.57 = 212,860.62/x
  3. Step 3: Cross multiply
    367,882.70x = 507,632.57 × 212,860.62
  4. Step 4: Simplify right side
    367,882.70x = 108,054,982,518.09
  5. Step 5: Solve for x
    x = 108,054,982,518.09/367,882.70
  6. Step 6: Final answer
    x = 293,721.30

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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.