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Finding the Fourth Proportional to 352,068.74, 485,855.10 and 190,923.74

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Solution

The fourth proportional to 352,068.74, 485,855.10 and 190,923.74 is: 263,474.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,068.74 : 485,855.10 = 190,923.74 : x
  2. Step 2: Convert to fraction form
    352,068.74/485,855.10 = 190,923.74/x
  3. Step 3: Cross multiply
    352,068.74x = 485,855.10 × 190,923.74
  4. Step 4: Simplify right side
    352,068.74x = 92,761,270,360.80
  5. Step 5: Solve for x
    x = 92,761,270,360.80/352,068.74
  6. Step 6: Final answer
    x = 263,474.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.