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Finding the Fourth Proportional to 188,894.88, 260,669.88 and 104,012.64

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Solution

The fourth proportional to 188,894.88, 260,669.88 and 104,012.64 is: 143,534.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,894.88 : 260,669.88 = 104,012.64 : x
  2. Step 2: Convert to fraction form
    188,894.88/260,669.88 = 104,012.64/x
  3. Step 3: Cross multiply
    188,894.88x = 260,669.88 × 104,012.64
  4. Step 4: Simplify right side
    188,894.88x = 27,112,962,387.28
  5. Step 5: Solve for x
    x = 27,112,962,387.28/188,894.88
  6. Step 6: Final answer
    x = 143,534.66

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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.