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Finding the Fourth Proportional to 104,572.12, 156,769.98 and 45,363.22

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Solution

The fourth proportional to 104,572.12, 156,769.98 and 45,363.22 is: 68,006.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,572.12 : 156,769.98 = 45,363.22 : x
  2. Step 2: Convert to fraction form
    104,572.12/156,769.98 = 45,363.22/x
  3. Step 3: Cross multiply
    104,572.12x = 156,769.98 × 45,363.22
  4. Step 4: Simplify right side
    104,572.12x = 7,111,591,092.14
  5. Step 5: Solve for x
    x = 7,111,591,092.14/104,572.12
  6. Step 6: Final answer
    x = 68,006.57

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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.