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Finding the Fourth Proportional to 186,093.70, 279,140.55 and 167,431.30

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Solution

The fourth proportional to 186,093.70, 279,140.55 and 167,431.30 is: 251,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,093.70 : 279,140.55 = 167,431.30 : x
  2. Step 2: Convert to fraction form
    186,093.70/279,140.55 = 167,431.30/x
  3. Step 3: Cross multiply
    186,093.70x = 279,140.55 × 167,431.30
  4. Step 4: Simplify right side
    186,093.70x = 46,736,865,169.22
  5. Step 5: Solve for x
    x = 46,736,865,169.22/186,093.70
  6. Step 6: Final answer
    x = 251,146.95

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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.