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Finding the Fourth Proportional to 188,759.88, 260,482.23 and 103,876.74

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Solution

The fourth proportional to 188,759.88, 260,482.23 and 103,876.74 is: 143,346.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,759.88 : 260,482.23 = 103,876.74 : x
  2. Step 2: Convert to fraction form
    188,759.88/260,482.23 = 103,876.74/x
  3. Step 3: Cross multiply
    188,759.88x = 260,482.23 × 103,876.74
  4. Step 4: Simplify right side
    188,759.88x = 27,058,044,880.33
  5. Step 5: Solve for x
    x = 27,058,044,880.33/188,759.88
  6. Step 6: Final answer
    x = 143,346.38

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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.