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Finding the Fourth Proportional to 104,352.63, 156,460.89 and 68,706.06

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Solution

The fourth proportional to 104,352.63, 156,460.89 and 68,706.06 is: 103,014.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,352.63 : 156,460.89 = 68,706.06 : x
  2. Step 2: Convert to fraction form
    104,352.63/156,460.89 = 68,706.06/x
  3. Step 3: Cross multiply
    104,352.63x = 156,460.89 × 68,706.06
  4. Step 4: Simplify right side
    104,352.63x = 10,749,811,295.99
  5. Step 5: Solve for x
    x = 10,749,811,295.99/104,352.63
  6. Step 6: Final answer
    x = 103,014.28

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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.