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Finding the Fourth Proportional to 104,615, 156,991.62 and 49,215.32

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Solution

The fourth proportional to 104,615, 156,991.62 and 49,215.32 is: 73,855.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,615 : 156,991.62 = 49,215.32 : x
  2. Step 2: Convert to fraction form
    104,615/156,991.62 = 49,215.32/x
  3. Step 3: Cross multiply
    104,615x = 156,991.62 × 49,215.32
  4. Step 4: Simplify right side
    104,615x = 7,726,392,815.62
  5. Step 5: Solve for x
    x = 7,726,392,815.62/104,615
  6. Step 6: Final answer
    x = 73,855.50

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1.5x scale

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.