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Finding the Fourth Proportional to 188,809.33, 260,375.77 and 126,859.92

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Solution

The fourth proportional to 188,809.33, 260,375.77 and 126,859.92 is: 174,945.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,809.33 : 260,375.77 = 126,859.92 : x
  2. Step 2: Convert to fraction form
    188,809.33/260,375.77 = 126,859.92/x
  3. Step 3: Cross multiply
    188,809.33x = 260,375.77 × 126,859.92
  4. Step 4: Simplify right side
    188,809.33x = 33,031,248,058.58
  5. Step 5: Solve for x
    x = 33,031,248,058.58/188,809.33
  6. Step 6: Final answer
    x = 174,945.00

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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.