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Finding the Fourth Proportional to 453,649.02, 680,515.92 and 133,801.20

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Solution

The fourth proportional to 453,649.02, 680,515.92 and 133,801.20 is: 200,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,649.02 : 680,515.92 = 133,801.20 : x
  2. Step 2: Convert to fraction form
    453,649.02/680,515.92 = 133,801.20/x
  3. Step 3: Cross multiply
    453,649.02x = 680,515.92 × 133,801.20
  4. Step 4: Simplify right side
    453,649.02x = 91,053,846,715.10
  5. Step 5: Solve for x
    x = 91,053,846,715.10/453,649.02
  6. Step 6: Final answer
    x = 200,714.30

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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.