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Finding the Fourth Proportional to 241,019.20, 361,528.80 and 122,921.20

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Solution

The fourth proportional to 241,019.20, 361,528.80 and 122,921.20 is: 184,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,019.20 : 361,528.80 = 122,921.20 : x
  2. Step 2: Convert to fraction form
    241,019.20/361,528.80 = 122,921.20/x
  3. Step 3: Cross multiply
    241,019.20x = 361,528.80 × 122,921.20
  4. Step 4: Simplify right side
    241,019.20x = 44,439,553,930.56
  5. Step 5: Solve for x
    x = 44,439,553,930.56/241,019.20
  6. Step 6: Final answer
    x = 184,381.80

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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.