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Finding the Fourth Proportional to 373,091.20, 559,636.80 and 123,773.20

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Solution

The fourth proportional to 373,091.20, 559,636.80 and 123,773.20 is: 185,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,091.20 : 559,636.80 = 123,773.20 : x
  2. Step 2: Convert to fraction form
    373,091.20/559,636.80 = 123,773.20/x
  3. Step 3: Cross multiply
    373,091.20x = 559,636.80 × 123,773.20
  4. Step 4: Simplify right side
    373,091.20x = 69,268,037,573.76
  5. Step 5: Solve for x
    x = 69,268,037,573.76/373,091.20
  6. Step 6: Final answer
    x = 185,659.80

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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.