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Finding the Fourth Proportional to 186,291.54, 279,440.04 and 53,171.88

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Solution

The fourth proportional to 186,291.54, 279,440.04 and 53,171.88 is: 79,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,291.54 : 279,440.04 = 53,171.88 : x
  2. Step 2: Convert to fraction form
    186,291.54/279,440.04 = 53,171.88/x
  3. Step 3: Cross multiply
    186,291.54x = 279,440.04 × 53,171.88
  4. Step 4: Simplify right side
    186,291.54x = 14,858,352,274.08
  5. Step 5: Solve for x
    x = 14,858,352,274.08/186,291.54
  6. Step 6: Final answer
    x = 79,758.60

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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.