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Finding the Fourth Proportional to 323,220.88, 484,531.98 and 165,100.60

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Solution

The fourth proportional to 323,220.88, 484,531.98 and 165,100.60 is: 247,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,220.88 : 484,531.98 = 165,100.60 : x
  2. Step 2: Convert to fraction form
    323,220.88/484,531.98 = 165,100.60/x
  3. Step 3: Cross multiply
    323,220.88x = 484,531.98 × 165,100.60
  4. Step 4: Simplify right side
    323,220.88x = 79,996,520,617.19
  5. Step 5: Solve for x
    x = 79,996,520,617.19/323,220.88
  6. Step 6: Final answer
    x = 247,498.00

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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.