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Finding the Fourth Proportional to 110,905.72, 166,470.72 and 98,335.96

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Solution

The fourth proportional to 110,905.72, 166,470.72 and 98,335.96 is: 147,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,905.72 : 166,470.72 = 98,335.96 : x
  2. Step 2: Convert to fraction form
    110,905.72/166,470.72 = 98,335.96/x
  3. Step 3: Cross multiply
    110,905.72x = 166,470.72 × 98,335.96
  4. Step 4: Simplify right side
    110,905.72x = 16,370,058,063.09
  5. Step 5: Solve for x
    x = 16,370,058,063.09/110,905.72
  6. Step 6: Final answer
    x = 147,603.37

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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.