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Finding the Fourth Proportional to 308,744.43, 463,051.85 and 87,076.59

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Solution

The fourth proportional to 308,744.43, 463,051.85 and 87,076.59 is: 130,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,744.43 : 463,051.85 = 87,076.59 : x
  2. Step 2: Convert to fraction form
    308,744.43/463,051.85 = 87,076.59/x
  3. Step 3: Cross multiply
    308,744.43x = 463,051.85 × 87,076.59
  4. Step 4: Simplify right side
    308,744.43x = 40,320,977,882.06
  5. Step 5: Solve for x
    x = 40,320,977,882.06/308,744.43
  6. Step 6: Final answer
    x = 130,596.61

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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.