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Finding the Fourth Proportional to 453,611.47, 680,431.94 and 133,736.51

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Solution

The fourth proportional to 453,611.47, 680,431.94 and 133,736.51 is: 200,609.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,611.47 : 680,431.94 = 133,736.51 : x
  2. Step 2: Convert to fraction form
    453,611.47/680,431.94 = 133,736.51/x
  3. Step 3: Cross multiply
    453,611.47x = 680,431.94 × 133,736.51
  4. Step 4: Simplify right side
    453,611.47x = 90,998,592,192.19
  5. Step 5: Solve for x
    x = 90,998,592,192.19/453,611.47
  6. Step 6: Final answer
    x = 200,609.11

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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.