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Finding the Fourth Proportional to 373,316.80, 559,975.20 and 136,667.20

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Solution

The fourth proportional to 373,316.80, 559,975.20 and 136,667.20 is: 205,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,316.80 : 559,975.20 = 136,667.20 : x
  2. Step 2: Convert to fraction form
    373,316.80/559,975.20 = 136,667.20/x
  3. Step 3: Cross multiply
    373,316.80x = 559,975.20 × 136,667.20
  4. Step 4: Simplify right side
    373,316.80x = 76,530,242,653.44
  5. Step 5: Solve for x
    x = 76,530,242,653.44/373,316.80
  6. Step 6: Final answer
    x = 205,000.80

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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.