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Finding the Fourth Proportional to 188,851.52, 260,620.26 and 103,973.80

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Solution

The fourth proportional to 188,851.52, 260,620.26 and 103,973.80 is: 143,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,851.52 : 260,620.26 = 103,973.80 : x
  2. Step 2: Convert to fraction form
    188,851.52/260,620.26 = 103,973.80/x
  3. Step 3: Cross multiply
    188,851.52x = 260,620.26 × 103,973.80
  4. Step 4: Simplify right side
    188,851.52x = 27,097,678,789.19
  5. Step 5: Solve for x
    x = 27,097,678,789.19/188,851.52
  6. Step 6: Final answer
    x = 143,486.69

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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.