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Finding the Fourth Proportional to 267,968.70, 401,607.45 and 205,328.70

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Solution

The fourth proportional to 267,968.70, 401,607.45 and 205,328.70 is: 307,728.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,968.70 : 401,607.45 = 205,328.70 : x
  2. Step 2: Convert to fraction form
    267,968.70/401,607.45 = 205,328.70/x
  3. Step 3: Cross multiply
    267,968.70x = 401,607.45 × 205,328.70
  4. Step 4: Simplify right side
    267,968.70x = 82,461,535,618.82
  5. Step 5: Solve for x
    x = 82,461,535,618.82/267,968.70
  6. Step 6: Final answer
    x = 307,728.24

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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.