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Finding the Fourth Proportional to 188,642.44, 260,330.82 and 103,764.04

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Solution

The fourth proportional to 188,642.44, 260,330.82 and 103,764.04 is: 143,196.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,642.44 : 260,330.82 = 103,764.04 : x
  2. Step 2: Convert to fraction form
    188,642.44/260,330.82 = 103,764.04/x
  3. Step 3: Cross multiply
    188,642.44x = 260,330.82 × 103,764.04
  4. Step 4: Simplify right side
    188,642.44x = 27,012,977,619.71
  5. Step 5: Solve for x
    x = 27,012,977,619.71/188,642.44
  6. Step 6: Final answer
    x = 143,196.71

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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.