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Finding the Fourth Proportional to 323,558.88, 485,339.56 and 98,918.44

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Solution

The fourth proportional to 323,558.88, 485,339.56 and 98,918.44 is: 148,378.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,558.88 : 485,339.56 = 98,918.44 : x
  2. Step 2: Convert to fraction form
    323,558.88/485,339.56 = 98,918.44/x
  3. Step 3: Cross multiply
    323,558.88x = 485,339.56 × 98,918.44
  4. Step 4: Simplify right side
    323,558.88x = 48,009,032,145.49
  5. Step 5: Solve for x
    x = 48,009,032,145.49/323,558.88
  6. Step 6: Final answer
    x = 148,378.04

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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.