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Finding the Fourth Proportional to 362,072.10, 543,108.15 and 229,539.90

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Solution

The fourth proportional to 362,072.10, 543,108.15 and 229,539.90 is: 344,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,072.10 : 543,108.15 = 229,539.90 : x
  2. Step 2: Convert to fraction form
    362,072.10/543,108.15 = 229,539.90/x
  3. Step 3: Cross multiply
    362,072.10x = 543,108.15 × 229,539.90
  4. Step 4: Simplify right side
    362,072.10x = 124,664,990,440.19
  5. Step 5: Solve for x
    x = 124,664,990,440.19/362,072.10
  6. Step 6: Final answer
    x = 344,309.85

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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.