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Finding the Fourth Proportional to 599,673.78, 899,509.86 and 156,441.78

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Solution

The fourth proportional to 599,673.78, 899,509.86 and 156,441.78 is: 234,662.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,673.78 : 899,509.86 = 156,441.78 : x
  2. Step 2: Convert to fraction form
    599,673.78/899,509.86 = 156,441.78/x
  3. Step 3: Cross multiply
    599,673.78x = 899,509.86 × 156,441.78
  4. Step 4: Simplify right side
    599,673.78x = 140,720,923,625.95
  5. Step 5: Solve for x
    x = 140,720,923,625.95/599,673.78
  6. Step 6: Final answer
    x = 234,662.46

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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.