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Finding the Fourth Proportional to 168,735.69, 253,497.20 and 98,664.21

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Solution

The fourth proportional to 168,735.69, 253,497.20 and 98,664.21 is: 148,226.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,735.69 : 253,497.20 = 98,664.21 : x
  2. Step 2: Convert to fraction form
    168,735.69/253,497.20 = 98,664.21/x
  3. Step 3: Cross multiply
    168,735.69x = 253,497.20 × 98,664.21
  4. Step 4: Simplify right side
    168,735.69x = 25,011,100,481.89
  5. Step 5: Solve for x
    x = 25,011,100,481.89/168,735.69
  6. Step 6: Final answer
    x = 148,226.50

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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.