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Finding the Fourth Proportional to 176,406.26, 243,461.50 and 104,786.56

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Solution

The fourth proportional to 176,406.26, 243,461.50 and 104,786.56 is: 144,617.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,406.26 : 243,461.50 = 104,786.56 : x
  2. Step 2: Convert to fraction form
    176,406.26/243,461.50 = 104,786.56/x
  3. Step 3: Cross multiply
    176,406.26x = 243,461.50 × 104,786.56
  4. Step 4: Simplify right side
    176,406.26x = 25,511,493,817.08
  5. Step 5: Solve for x
    x = 25,511,493,817.08/176,406.26
  6. Step 6: Final answer
    x = 144,617.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.