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Finding the Fourth Proportional to 325,814.88, 488,889.60 and 155,229.84

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Solution

The fourth proportional to 325,814.88, 488,889.60 and 155,229.84 is: 232,924.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,814.88 : 488,889.60 = 155,229.84 : x
  2. Step 2: Convert to fraction form
    325,814.88/488,889.60 = 155,229.84/x
  3. Step 3: Cross multiply
    325,814.88x = 488,889.60 × 155,229.84
  4. Step 4: Simplify right side
    325,814.88x = 75,890,254,385.66
  5. Step 5: Solve for x
    x = 75,890,254,385.66/325,814.88
  6. Step 6: Final answer
    x = 232,924.46

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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.