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Finding the Fourth Proportional to 240,736.76, 332,188.39 and 138,761.00

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Solution

The fourth proportional to 240,736.76, 332,188.39 and 138,761.00 is: 191,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,736.76 : 332,188.39 = 138,761.00 : x
  2. Step 2: Convert to fraction form
    240,736.76/332,188.39 = 138,761.00/x
  3. Step 3: Cross multiply
    240,736.76x = 332,188.39 × 138,761.00
  4. Step 4: Simplify right side
    240,736.76x = 46,094,792,943.01
  5. Step 5: Solve for x
    x = 46,094,792,943.01/240,736.76
  6. Step 6: Final answer
    x = 191,473.85

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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.