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Finding the Fourth Proportional to 110,395.90, 165,495.43 and 91,828.27

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Solution

The fourth proportional to 110,395.90, 165,495.43 and 91,828.27 is: 137,660.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,395.90 : 165,495.43 = 91,828.27 : x
  2. Step 2: Convert to fraction form
    110,395.90/165,495.43 = 91,828.27/x
  3. Step 3: Cross multiply
    110,395.90x = 165,495.43 × 91,828.27
  4. Step 4: Simplify right side
    110,395.90x = 15,197,159,029.81
  5. Step 5: Solve for x
    x = 15,197,159,029.81/110,395.90
  6. Step 6: Final answer
    x = 137,660.54

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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.