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Finding the Fourth Proportional to 104,104.35, 156,133.13 and 47,890.49

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Solution

The fourth proportional to 104,104.35, 156,133.13 and 47,890.49 is: 71,824.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,104.35 : 156,133.13 = 47,890.49 : x
  2. Step 2: Convert to fraction form
    104,104.35/156,133.13 = 47,890.49/x
  3. Step 3: Cross multiply
    104,104.35x = 156,133.13 × 47,890.49
  4. Step 4: Simplify right side
    104,104.35x = 7,477,291,080.82
  5. Step 5: Solve for x
    x = 7,477,291,080.82/104,104.35
  6. Step 6: Final answer
    x = 71,824.96

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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.