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Finding the Fourth Proportional to 137,697.48, 206,504.86 and 48,939.32

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Solution

The fourth proportional to 137,697.48, 206,504.86 and 48,939.32 is: 73,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,697.48 : 206,504.86 = 48,939.32 : x
  2. Step 2: Convert to fraction form
    137,697.48/206,504.86 = 48,939.32/x
  3. Step 3: Cross multiply
    137,697.48x = 206,504.86 × 48,939.32
  4. Step 4: Simplify right side
    137,697.48x = 10,106,207,425.10
  5. Step 5: Solve for x
    x = 10,106,207,425.10/137,697.48
  6. Step 6: Final answer
    x = 73,394.28

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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.