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Finding the Fourth Proportional to 252,394.38, 348,300.81 and 137,674.08

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Solution

The fourth proportional to 252,394.38, 348,300.81 and 137,674.08 is: 189,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,394.38 : 348,300.81 = 137,674.08 : x
  2. Step 2: Convert to fraction form
    252,394.38/348,300.81 = 137,674.08/x
  3. Step 3: Cross multiply
    252,394.38x = 348,300.81 × 137,674.08
  4. Step 4: Simplify right side
    252,394.38x = 47,951,993,580.00
  5. Step 5: Solve for x
    x = 47,951,993,580.00/252,394.38
  6. Step 6: Final answer
    x = 189,988.36

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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.