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Finding the Fourth Proportional to 100,361.34, 150,542.08 and 25,487.10

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Solution

The fourth proportional to 100,361.34, 150,542.08 and 25,487.10 is: 38,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,361.34 : 150,542.08 = 25,487.10 : x
  2. Step 2: Convert to fraction form
    100,361.34/150,542.08 = 25,487.10/x
  3. Step 3: Cross multiply
    100,361.34x = 150,542.08 × 25,487.10
  4. Step 4: Simplify right side
    100,361.34x = 3,836,881,047.17
  5. Step 5: Solve for x
    x = 3,836,881,047.17/100,361.34
  6. Step 6: Final answer
    x = 38,230.67

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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.