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Finding the Fourth Proportional to 188,901.75, 260,684.42 and 104,018.61

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Solution

The fourth proportional to 188,901.75, 260,684.42 and 104,018.61 is: 143,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,901.75 : 260,684.42 = 104,018.61 : x
  2. Step 2: Convert to fraction form
    188,901.75/260,684.42 = 104,018.61/x
  3. Step 3: Cross multiply
    188,901.75x = 260,684.42 × 104,018.61
  4. Step 4: Simplify right side
    188,901.75x = 27,116,030,496.96
  5. Step 5: Solve for x
    x = 27,116,030,496.96/188,901.75
  6. Step 6: Final answer
    x = 143,545.68

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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.