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Finding the Fourth Proportional to 188,562.12, 282,769.05 and 68,590.59

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Solution

The fourth proportional to 188,562.12, 282,769.05 and 68,590.59 is: 102,858.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,562.12 : 282,769.05 = 68,590.59 : x
  2. Step 2: Convert to fraction form
    188,562.12/282,769.05 = 68,590.59/x
  3. Step 3: Cross multiply
    188,562.12x = 282,769.05 × 68,590.59
  4. Step 4: Simplify right side
    188,562.12x = 19,395,295,973.24
  5. Step 5: Solve for x
    x = 19,395,295,973.24/188,562.12
  6. Step 6: Final answer
    x = 102,858.92

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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.