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Finding the Fourth Proportional to 104,418.70, 156,628.05 and 34,305.10

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Solution

The fourth proportional to 104,418.70, 156,628.05 and 34,305.10 is: 51,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,418.70 : 156,628.05 = 34,305.10 : x
  2. Step 2: Convert to fraction form
    104,418.70/156,628.05 = 34,305.10/x
  3. Step 3: Cross multiply
    104,418.70x = 156,628.05 × 34,305.10
  4. Step 4: Simplify right side
    104,418.70x = 5,373,140,918.06
  5. Step 5: Solve for x
    x = 5,373,140,918.06/104,418.70
  6. Step 6: Final answer
    x = 51,457.65

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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.