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Finding the Fourth Proportional to 98,511.63, 135,949.31 and 53,799.63

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Solution

The fourth proportional to 98,511.63, 135,949.31 and 53,799.63 is: 74,245.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,511.63 : 135,949.31 = 53,799.63 : x
  2. Step 2: Convert to fraction form
    98,511.63/135,949.31 = 53,799.63/x
  3. Step 3: Cross multiply
    98,511.63x = 135,949.31 × 53,799.63
  4. Step 4: Simplify right side
    98,511.63x = 7,314,022,576.76
  5. Step 5: Solve for x
    x = 7,314,022,576.76/98,511.63
  6. Step 6: Final answer
    x = 74,245.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.