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Finding the Fourth Proportional to 362,704.80, 544,057.20 and 126,071.40

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Solution

The fourth proportional to 362,704.80, 544,057.20 and 126,071.40 is: 189,107.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,704.80 : 544,057.20 = 126,071.40 : x
  2. Step 2: Convert to fraction form
    362,704.80/544,057.20 = 126,071.40/x
  3. Step 3: Cross multiply
    362,704.80x = 544,057.20 × 126,071.40
  4. Step 4: Simplify right side
    362,704.80x = 68,590,052,884.08
  5. Step 5: Solve for x
    x = 68,590,052,884.08/362,704.80
  6. Step 6: Final answer
    x = 189,107.10

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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.