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Finding the Fourth Proportional to 373,069.12, 514,709.04 and 227,821.90

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Solution

The fourth proportional to 373,069.12, 514,709.04 and 227,821.90 is: 314,317.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,069.12 : 514,709.04 = 227,821.90 : x
  2. Step 2: Convert to fraction form
    373,069.12/514,709.04 = 227,821.90/x
  3. Step 3: Cross multiply
    373,069.12x = 514,709.04 × 227,821.90
  4. Step 4: Simplify right side
    373,069.12x = 117,261,991,439.98
  5. Step 5: Solve for x
    x = 117,261,991,439.98/373,069.12
  6. Step 6: Final answer
    x = 314,317.07

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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.