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Finding the Fourth Proportional to 323,840.87, 446,900.81 and 178,643.37

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Solution

The fourth proportional to 323,840.87, 446,900.81 and 178,643.37 is: 246,528.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,840.87 : 446,900.81 = 178,643.37 : x
  2. Step 2: Convert to fraction form
    323,840.87/446,900.81 = 178,643.37/x
  3. Step 3: Cross multiply
    323,840.87x = 446,900.81 × 178,643.37
  4. Step 4: Simplify right side
    323,840.87x = 79,835,866,754.13
  5. Step 5: Solve for x
    x = 79,835,866,754.13/323,840.87
  6. Step 6: Final answer
    x = 246,528.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.