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Finding the Fourth Proportional to 248,091.69, 372,260.67 and 98,328.78

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Solution

The fourth proportional to 248,091.69, 372,260.67 and 98,328.78 is: 147,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,091.69 : 372,260.67 = 98,328.78 : x
  2. Step 2: Convert to fraction form
    248,091.69/372,260.67 = 98,328.78/x
  3. Step 3: Cross multiply
    248,091.69x = 372,260.67 × 98,328.78
  4. Step 4: Simplify right side
    248,091.69x = 36,603,937,523.08
  5. Step 5: Solve for x
    x = 36,603,937,523.08/248,091.69
  6. Step 6: Final answer
    x = 147,541.97

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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.