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Finding the Fourth Proportional to 186,327.36, 279,605.52 and 73,987.92

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Solution

The fourth proportional to 186,327.36, 279,605.52 and 73,987.92 is: 111,027.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,327.36 : 279,605.52 = 73,987.92 : x
  2. Step 2: Convert to fraction form
    186,327.36/279,605.52 = 73,987.92/x
  3. Step 3: Cross multiply
    186,327.36x = 279,605.52 × 73,987.92
  4. Step 4: Simplify right side
    186,327.36x = 20,687,430,845.32
  5. Step 5: Solve for x
    x = 20,687,430,845.32/186,327.36
  6. Step 6: Final answer
    x = 111,027.34

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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.