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Finding the Fourth Proportional to 123,060.80, 184,537.20 and 56,478.80

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Solution

The fourth proportional to 123,060.80, 184,537.20 and 56,478.80 is: 84,693.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,060.80 : 184,537.20 = 56,478.80 : x
  2. Step 2: Convert to fraction form
    123,060.80/184,537.20 = 56,478.80/x
  3. Step 3: Cross multiply
    123,060.80x = 184,537.20 × 56,478.80
  4. Step 4: Simplify right side
    123,060.80x = 10,422,439,611.36
  5. Step 5: Solve for x
    x = 10,422,439,611.36/123,060.80
  6. Step 6: Final answer
    x = 84,693.42

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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.