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Finding the Fourth Proportional to 323,043.20, 484,564.80 and 98,403.20

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Solution

The fourth proportional to 323,043.20, 484,564.80 and 98,403.20 is: 147,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,043.20 : 484,564.80 = 98,403.20 : x
  2. Step 2: Convert to fraction form
    323,043.20/484,564.80 = 98,403.20/x
  3. Step 3: Cross multiply
    323,043.20x = 484,564.80 × 98,403.20
  4. Step 4: Simplify right side
    323,043.20x = 47,682,726,927.36
  5. Step 5: Solve for x
    x = 47,682,726,927.36/323,043.20
  6. Step 6: Final answer
    x = 147,604.80

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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.