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Finding the Fourth Proportional to 308,561.76, 463,105.62 and 121,704.48

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Solution

The fourth proportional to 308,561.76, 463,105.62 and 121,704.48 is: 182,660.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,561.76 : 463,105.62 = 121,704.48 : x
  2. Step 2: Convert to fraction form
    308,561.76/463,105.62 = 121,704.48/x
  3. Step 3: Cross multiply
    308,561.76x = 463,105.62 × 121,704.48
  4. Step 4: Simplify right side
    308,561.76x = 56,362,028,667.18
  5. Step 5: Solve for x
    x = 56,362,028,667.18/308,561.76
  6. Step 6: Final answer
    x = 182,660.45

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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.