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Finding the Fourth Proportional to 362,406.70, 543,415.65 and 151,806.70

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Solution

The fourth proportional to 362,406.70, 543,415.65 and 151,806.70 is: 227,628.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,406.70 : 543,415.65 = 151,806.70 : x
  2. Step 2: Convert to fraction form
    362,406.70/543,415.65 = 151,806.70/x
  3. Step 3: Cross multiply
    362,406.70x = 543,415.65 × 151,806.70
  4. Step 4: Simplify right side
    362,406.70x = 82,494,136,554.86
  5. Step 5: Solve for x
    x = 82,494,136,554.86/362,406.70
  6. Step 6: Final answer
    x = 227,628.62

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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.