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Finding the Fourth Proportional to 188,762.82, 260,492.13 and 103,879.82

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Solution

The fourth proportional to 188,762.82, 260,492.13 and 103,879.82 is: 143,353.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,762.82 : 260,492.13 = 103,879.82 : x
  2. Step 2: Convert to fraction form
    188,762.82/260,492.13 = 103,879.82/x
  3. Step 3: Cross multiply
    188,762.82x = 260,492.13 × 103,879.82
  4. Step 4: Simplify right side
    188,762.82x = 27,059,874,273.36
  5. Step 5: Solve for x
    x = 27,059,874,273.36/188,762.82
  6. Step 6: Final answer
    x = 143,353.84

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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.