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Finding the Fourth Proportional to 267,409.70, 401,114.55 and 207,923.30

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Solution

The fourth proportional to 267,409.70, 401,114.55 and 207,923.30 is: 311,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,409.70 : 401,114.55 = 207,923.30 : x
  2. Step 2: Convert to fraction form
    267,409.70/401,114.55 = 207,923.30/x
  3. Step 3: Cross multiply
    267,409.70x = 401,114.55 × 207,923.30
  4. Step 4: Simplify right side
    267,409.70x = 83,401,060,914.02
  5. Step 5: Solve for x
    x = 83,401,060,914.02/267,409.70
  6. Step 6: Final answer
    x = 311,884.95

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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.