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Finding the Fourth Proportional to 103,636.67, 155,454.99 and 68,568.14

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Solution

The fourth proportional to 103,636.67, 155,454.99 and 68,568.14 is: 102,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.67 : 155,454.99 = 68,568.14 : x
  2. Step 2: Convert to fraction form
    103,636.67/155,454.99 = 68,568.14/x
  3. Step 3: Cross multiply
    103,636.67x = 155,454.99 × 68,568.14
  4. Step 4: Simplify right side
    103,636.67x = 10,659,259,518.02
  5. Step 5: Solve for x
    x = 10,659,259,518.02/103,636.67
  6. Step 6: Final answer
    x = 102,852.20

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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.