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Finding the Fourth Proportional to 186,673.56, 279,897.74 and 74,371.11

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Solution

The fourth proportional to 186,673.56, 279,897.74 and 74,371.11 is: 111,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,673.56 : 279,897.74 = 74,371.11 : x
  2. Step 2: Convert to fraction form
    186,673.56/279,897.74 = 74,371.11/x
  3. Step 3: Cross multiply
    186,673.56x = 279,897.74 × 74,371.11
  4. Step 4: Simplify right side
    186,673.56x = 20,816,305,610.29
  5. Step 5: Solve for x
    x = 20,816,305,610.29/186,673.56
  6. Step 6: Final answer
    x = 111,511.80

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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.