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Finding the Fourth Proportional to 364,753.53, 503,271.23 and 213,821.37

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Solution

The fourth proportional to 364,753.53, 503,271.23 and 213,821.37 is: 295,021.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,753.53 : 503,271.23 = 213,821.37 : x
  2. Step 2: Convert to fraction form
    364,753.53/503,271.23 = 213,821.37/x
  3. Step 3: Cross multiply
    364,753.53x = 503,271.23 × 213,821.37
  4. Step 4: Simplify right side
    364,753.53x = 107,610,142,811.08
  5. Step 5: Solve for x
    x = 107,610,142,811.08/364,753.53
  6. Step 6: Final answer
    x = 295,021.53

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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.