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Finding the Fourth Proportional to 104,305.50, 155,116.44 and 100,984.10

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Solution

The fourth proportional to 104,305.50, 155,116.44 and 100,984.10 is: 150,177.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,305.50 : 155,116.44 = 100,984.10 : x
  2. Step 2: Convert to fraction form
    104,305.50/155,116.44 = 100,984.10/x
  3. Step 3: Cross multiply
    104,305.50x = 155,116.44 × 100,984.10
  4. Step 4: Simplify right side
    104,305.50x = 15,664,293,313.02
  5. Step 5: Solve for x
    x = 15,664,293,313.02/104,305.50
  6. Step 6: Final answer
    x = 150,177.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.