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Finding the Fourth Proportional to 268,167.20, 401,905.20 and 205,527.20

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Solution

The fourth proportional to 268,167.20, 401,905.20 and 205,527.20 is: 308,025.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,167.20 : 401,905.20 = 205,527.20 : x
  2. Step 2: Convert to fraction form
    268,167.20/401,905.20 = 205,527.20/x
  3. Step 3: Cross multiply
    268,167.20x = 401,905.20 × 205,527.20
  4. Step 4: Simplify right side
    268,167.20x = 82,602,450,421.44
  5. Step 5: Solve for x
    x = 82,602,450,421.44/268,167.20
  6. Step 6: Final answer
    x = 308,025.93

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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.