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Finding the Fourth Proportional to 331,246.94, 456,661.60 and 223,646.54

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Solution

The fourth proportional to 331,246.94, 456,661.60 and 223,646.54 is: 308,322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,246.94 : 456,661.60 = 223,646.54 : x
  2. Step 2: Convert to fraction form
    331,246.94/456,661.60 = 223,646.54/x
  3. Step 3: Cross multiply
    331,246.94x = 456,661.60 × 223,646.54
  4. Step 4: Simplify right side
    331,246.94x = 102,130,783,948.44
  5. Step 5: Solve for x
    x = 102,130,783,948.44/331,246.94
  6. Step 6: Final answer
    x = 308,322.20

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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.