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Finding the Fourth Proportional to 104,659.68, 156,868.56 and 45,484.32

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Solution

The fourth proportional to 104,659.68, 156,868.56 and 45,484.32 is: 68,173.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,659.68 : 156,868.56 = 45,484.32 : x
  2. Step 2: Convert to fraction form
    104,659.68/156,868.56 = 45,484.32/x
  3. Step 3: Cross multiply
    104,659.68x = 156,868.56 × 45,484.32
  4. Step 4: Simplify right side
    104,659.68x = 7,135,059,780.98
  5. Step 5: Solve for x
    x = 7,135,059,780.98/104,659.68
  6. Step 6: Final answer
    x = 68,173.91

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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.