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Finding the Fourth Proportional to 248,441.56, 342,850.14 and 135,265

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Solution

The fourth proportional to 248,441.56, 342,850.14 and 135,265 is: 186,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,441.56 : 342,850.14 = 135,265 : x
  2. Step 2: Convert to fraction form
    248,441.56/342,850.14 = 135,265/x
  3. Step 3: Cross multiply
    248,441.56x = 342,850.14 × 135,265
  4. Step 4: Simplify right side
    248,441.56x = 46,375,624,187.10
  5. Step 5: Solve for x
    x = 46,375,624,187.10/248,441.56
  6. Step 6: Final answer
    x = 186,666.13

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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.