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Finding the Fourth Proportional to 104,359.94, 156,563.79 and 45,205.46

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Solution

The fourth proportional to 104,359.94, 156,563.79 and 45,205.46 is: 67,818.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,359.94 : 156,563.79 = 45,205.46 : x
  2. Step 2: Convert to fraction form
    104,359.94/156,563.79 = 45,205.46/x
  3. Step 3: Cross multiply
    104,359.94x = 156,563.79 × 45,205.46
  4. Step 4: Simplify right side
    104,359.94x = 7,077,538,146.29
  5. Step 5: Solve for x
    x = 7,077,538,146.29/104,359.94
  6. Step 6: Final answer
    x = 67,818.53

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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.