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Finding the Fourth Proportional to 100,984.40, 151,476.60 and 26,104.40

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Solution

The fourth proportional to 100,984.40, 151,476.60 and 26,104.40 is: 39,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,984.40 : 151,476.60 = 26,104.40 : x
  2. Step 2: Convert to fraction form
    100,984.40/151,476.60 = 26,104.40/x
  3. Step 3: Cross multiply
    100,984.40x = 151,476.60 × 26,104.40
  4. Step 4: Simplify right side
    100,984.40x = 3,954,205,757.04
  5. Step 5: Solve for x
    x = 3,954,205,757.04/100,984.40
  6. Step 6: Final answer
    x = 39,156.60

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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.