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Finding the Fourth Proportional to 188,266.53, 259,804.60 and 103,382.98

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Solution

The fourth proportional to 188,266.53, 259,804.60 and 103,382.98 is: 142,666.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,266.53 : 259,804.60 = 103,382.98 : x
  2. Step 2: Convert to fraction form
    188,266.53/259,804.60 = 103,382.98/x
  3. Step 3: Cross multiply
    188,266.53x = 259,804.60 × 103,382.98
  4. Step 4: Simplify right side
    188,266.53x = 26,859,373,765.71
  5. Step 5: Solve for x
    x = 26,859,373,765.71/188,266.53
  6. Step 6: Final answer
    x = 142,666.75

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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.