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Finding the Fourth Proportional to 123,124.56, 184,675.32 and 52,990.80

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Solution

The fourth proportional to 123,124.56, 184,675.32 and 52,990.80 is: 79,481.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,124.56 : 184,675.32 = 52,990.80 : x
  2. Step 2: Convert to fraction form
    123,124.56/184,675.32 = 52,990.80/x
  3. Step 3: Cross multiply
    123,124.56x = 184,675.32 × 52,990.80
  4. Step 4: Simplify right side
    123,124.56x = 9,786,092,947.06
  5. Step 5: Solve for x
    x = 9,786,092,947.06/123,124.56
  6. Step 6: Final answer
    x = 79,481.24

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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.