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Finding the Fourth Proportional to 323,838.42, 485,790.02 and 99,196.26

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Solution

The fourth proportional to 323,838.42, 485,790.02 and 99,196.26 is: 148,804.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,838.42 : 485,790.02 = 99,196.26 : x
  2. Step 2: Convert to fraction form
    323,838.42/485,790.02 = 99,196.26/x
  3. Step 3: Cross multiply
    323,838.42x = 485,790.02 × 99,196.26
  4. Step 4: Simplify right side
    323,838.42x = 48,188,553,129.33
  5. Step 5: Solve for x
    x = 48,188,553,129.33/323,838.42
  6. Step 6: Final answer
    x = 148,804.31

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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.