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Finding the Fourth Proportional to 186,161.94, 279,359.55 and 75,353.94

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Solution

The fourth proportional to 186,161.94, 279,359.55 and 75,353.94 is: 113,078.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,161.94 : 279,359.55 = 75,353.94 : x
  2. Step 2: Convert to fraction form
    186,161.94/279,359.55 = 75,353.94/x
  3. Step 3: Cross multiply
    186,161.94x = 279,359.55 × 75,353.94
  4. Step 4: Simplify right side
    186,161.94x = 21,050,842,769.13
  5. Step 5: Solve for x
    x = 21,050,842,769.13/186,161.94
  6. Step 6: Final answer
    x = 113,078.12

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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.