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Finding the Fourth Proportional to 186,722.49, 279,901.49 and 74,369.01

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Solution

The fourth proportional to 186,722.49, 279,901.49 and 74,369.01 is: 111,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,722.49 : 279,901.49 = 74,369.01 : x
  2. Step 2: Convert to fraction form
    186,722.49/279,901.49 = 74,369.01/x
  3. Step 3: Cross multiply
    186,722.49x = 279,901.49 × 74,369.01
  4. Step 4: Simplify right side
    186,722.49x = 20,815,996,336.98
  5. Step 5: Solve for x
    x = 20,815,996,336.98/186,722.49
  6. Step 6: Final answer
    x = 111,480.93

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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.