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Finding the Fourth Proportional to 186,860.20, 279,634.20 and 127,811.20

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Solution

The fourth proportional to 186,860.20, 279,634.20 and 127,811.20 is: 191,268.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,860.20 : 279,634.20 = 127,811.20 : x
  2. Step 2: Convert to fraction form
    186,860.20/279,634.20 = 127,811.20/x
  3. Step 3: Cross multiply
    186,860.20x = 279,634.20 × 127,811.20
  4. Step 4: Simplify right side
    186,860.20x = 35,740,382,663.04
  5. Step 5: Solve for x
    x = 35,740,382,663.04/186,860.20
  6. Step 6: Final answer
    x = 191,268.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.