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Finding the Fourth Proportional to 186,729.33, 279,810.33 and 136,842.46

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Solution

The fourth proportional to 186,729.33, 279,810.33 and 136,842.46 is: 205,055.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,729.33 : 279,810.33 = 136,842.46 : x
  2. Step 2: Convert to fraction form
    186,729.33/279,810.33 = 136,842.46/x
  3. Step 3: Cross multiply
    186,729.33x = 279,810.33 × 136,842.46
  4. Step 4: Simplify right side
    186,729.33x = 38,289,933,890.61
  5. Step 5: Solve for x
    x = 38,289,933,890.61/186,729.33
  6. Step 6: Final answer
    x = 205,055.81

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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.