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Finding the Fourth Proportional to 110,828.40, 166,008.60 and 73,406.40

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Solution

The fourth proportional to 110,828.40, 166,008.60 and 73,406.40 is: 109,954.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,828.40 : 166,008.60 = 73,406.40 : x
  2. Step 2: Convert to fraction form
    110,828.40/166,008.60 = 73,406.40/x
  3. Step 3: Cross multiply
    110,828.40x = 166,008.60 × 73,406.40
  4. Step 4: Simplify right side
    110,828.40x = 12,186,093,695.04
  5. Step 5: Solve for x
    x = 12,186,093,695.04/110,828.40
  6. Step 6: Final answer
    x = 109,954.61

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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.