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Finding the Fourth Proportional to 100,361.67, 150,567.78 and 70,837.17

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Solution

The fourth proportional to 100,361.67, 150,567.78 and 70,837.17 is: 106,273.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,361.67 : 150,567.78 = 70,837.17 : x
  2. Step 2: Convert to fraction form
    100,361.67/150,567.78 = 70,837.17/x
  3. Step 3: Cross multiply
    100,361.67x = 150,567.78 × 70,837.17
  4. Step 4: Simplify right side
    100,361.67x = 10,665,795,428.38
  5. Step 5: Solve for x
    x = 10,665,795,428.38/100,361.67
  6. Step 6: Final answer
    x = 106,273.59

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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.