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Finding the Fourth Proportional to 186,664.48, 279,996.73 and 74,423.52

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Solution

The fourth proportional to 186,664.48, 279,996.73 and 74,423.52 is: 111,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,664.48 : 279,996.73 = 74,423.52 : x
  2. Step 2: Convert to fraction form
    186,664.48/279,996.73 = 74,423.52/x
  3. Step 3: Cross multiply
    186,664.48x = 279,996.73 × 74,423.52
  4. Step 4: Simplify right side
    186,664.48x = 20,838,340,999.04
  5. Step 5: Solve for x
    x = 20,838,340,999.04/186,664.48
  6. Step 6: Final answer
    x = 111,635.28

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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.