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Finding the Fourth Proportional to 204,661.31, 306,425.16 and 104,606.06

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Solution

The fourth proportional to 204,661.31, 306,425.16 and 104,606.06 is: 156,619.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,661.31 : 306,425.16 = 104,606.06 : x
  2. Step 2: Convert to fraction form
    204,661.31/306,425.16 = 104,606.06/x
  3. Step 3: Cross multiply
    204,661.31x = 306,425.16 × 104,606.06
  4. Step 4: Simplify right side
    204,661.31x = 32,053,927,140.34
  5. Step 5: Solve for x
    x = 32,053,927,140.34/204,661.31
  6. Step 6: Final answer
    x = 156,619.38

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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.