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Finding the Fourth Proportional to 437,563.69, 656,456.23 and 122,020.63

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Solution

The fourth proportional to 437,563.69, 656,456.23 and 122,020.63 is: 183,061.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,563.69 : 656,456.23 = 122,020.63 : x
  2. Step 2: Convert to fraction form
    437,563.69/656,456.23 = 122,020.63/x
  3. Step 3: Cross multiply
    437,563.69x = 656,456.23 × 122,020.63
  4. Step 4: Simplify right side
    437,563.69x = 80,101,201,263.41
  5. Step 5: Solve for x
    x = 80,101,201,263.41/437,563.69
  6. Step 6: Final answer
    x = 183,061.81

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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.