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Finding the Fourth Proportional to 248,115.29, 342,399.99 and 134,938.04

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Solution

The fourth proportional to 248,115.29, 342,399.99 and 134,938.04 is: 186,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,115.29 : 342,399.99 = 134,938.04 : x
  2. Step 2: Convert to fraction form
    248,115.29/342,399.99 = 134,938.04/x
  3. Step 3: Cross multiply
    248,115.29x = 342,399.99 × 134,938.04
  4. Step 4: Simplify right side
    248,115.29x = 46,202,783,546.62
  5. Step 5: Solve for x
    x = 46,202,783,546.62/248,115.29
  6. Step 6: Final answer
    x = 186,214.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.