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Finding the Fourth Proportional to 267,364.80, 401,047.20 and 214,876.80

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Solution

The fourth proportional to 267,364.80, 401,047.20 and 214,876.80 is: 322,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,364.80 : 401,047.20 = 214,876.80 : x
  2. Step 2: Convert to fraction form
    267,364.80/401,047.20 = 214,876.80/x
  3. Step 3: Cross multiply
    267,364.80x = 401,047.20 × 214,876.80
  4. Step 4: Simplify right side
    267,364.80x = 86,175,738,984.96
  5. Step 5: Solve for x
    x = 86,175,738,984.96/267,364.80
  6. Step 6: Final answer
    x = 322,315.20

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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.