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Finding the Fourth Proportional to 585,791.68, 878,687.64 and 165,012.88

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Solution

The fourth proportional to 585,791.68, 878,687.64 and 165,012.88 is: 247,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,791.68 : 878,687.64 = 165,012.88 : x
  2. Step 2: Convert to fraction form
    585,791.68/878,687.64 = 165,012.88/x
  3. Step 3: Cross multiply
    585,791.68x = 878,687.64 × 165,012.88
  4. Step 4: Simplify right side
    585,791.68x = 144,994,778,096.80
  5. Step 5: Solve for x
    x = 144,994,778,096.80/585,791.68
  6. Step 6: Final answer
    x = 247,519.35

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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.