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Finding the Fourth Proportional to 453,891.92, 680,911.80 and 134,076.24

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Solution

The fourth proportional to 453,891.92, 680,911.80 and 134,076.24 is: 201,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,891.92 : 680,911.80 = 134,076.24 : x
  2. Step 2: Convert to fraction form
    453,891.92/680,911.80 = 134,076.24/x
  3. Step 3: Cross multiply
    453,891.92x = 680,911.80 × 134,076.24
  4. Step 4: Simplify right side
    453,891.92x = 91,294,093,915.63
  5. Step 5: Solve for x
    x = 91,294,093,915.63/453,891.92
  6. Step 6: Final answer
    x = 201,136.20

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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.