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Finding the Fourth Proportional to 188,766.76, 260,497.98 and 103,883.82

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Solution

The fourth proportional to 188,766.76, 260,497.98 and 103,883.82 is: 143,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,766.76 : 260,497.98 = 103,883.82 : x
  2. Step 2: Convert to fraction form
    188,766.76/260,497.98 = 103,883.82/x
  3. Step 3: Cross multiply
    188,766.76x = 260,497.98 × 103,883.82
  4. Step 4: Simplify right side
    188,766.76x = 27,061,525,264.68
  5. Step 5: Solve for x
    x = 27,061,525,264.68/188,766.76
  6. Step 6: Final answer
    x = 143,359.59

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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.