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Finding the Fourth Proportional to 320,707.08, 481,043.19 and 121,022.64

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Solution

The fourth proportional to 320,707.08, 481,043.19 and 121,022.64 is: 181,527.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,707.08 : 481,043.19 = 121,022.64 : x
  2. Step 2: Convert to fraction form
    320,707.08/481,043.19 = 121,022.64/x
  3. Step 3: Cross multiply
    320,707.08x = 481,043.19 × 121,022.64
  4. Step 4: Simplify right side
    320,707.08x = 58,217,116,807.82
  5. Step 5: Solve for x
    x = 58,217,116,807.82/320,707.08
  6. Step 6: Final answer
    x = 181,527.38

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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.