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Finding the Fourth Proportional to 104,546.43, 156,731.49 and 45,337.51

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Solution

The fourth proportional to 104,546.43, 156,731.49 and 45,337.51 is: 67,968.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,546.43 : 156,731.49 = 45,337.51 : x
  2. Step 2: Convert to fraction form
    104,546.43/156,731.49 = 45,337.51/x
  3. Step 3: Cross multiply
    104,546.43x = 156,731.49 × 45,337.51
  4. Step 4: Simplify right side
    104,546.43x = 7,105,815,495.19
  5. Step 5: Solve for x
    x = 7,105,815,495.19/104,546.43
  6. Step 6: Final answer
    x = 67,968.04

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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.