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Finding the Fourth Proportional to 323,343.72, 484,804.32 and 154,858.56

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Solution

The fourth proportional to 323,343.72, 484,804.32 and 154,858.56 is: 232,186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,343.72 : 484,804.32 = 154,858.56 : x
  2. Step 2: Convert to fraction form
    323,343.72/484,804.32 = 154,858.56/x
  3. Step 3: Cross multiply
    323,343.72x = 484,804.32 × 154,858.56
  4. Step 4: Simplify right side
    323,343.72x = 75,076,098,876.98
  5. Step 5: Solve for x
    x = 75,076,098,876.98/323,343.72
  6. Step 6: Final answer
    x = 232,186.66

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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.