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Finding the Fourth Proportional to 186,593.36, 279,933.98 and 74,279.97

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Solution

The fourth proportional to 186,593.36, 279,933.98 and 74,279.97 is: 111,437.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,593.36 : 279,933.98 = 74,279.97 : x
  2. Step 2: Convert to fraction form
    186,593.36/279,933.98 = 74,279.97/x
  3. Step 3: Cross multiply
    186,593.36x = 279,933.98 × 74,279.97
  4. Step 4: Simplify right side
    186,593.36x = 20,793,487,264.98
  5. Step 5: Solve for x
    x = 20,793,487,264.98/186,593.36
  6. Step 6: Final answer
    x = 111,437.45

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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.