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Finding the Fourth Proportional to 110,467.60, 165,701.40 and 105,629.20

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Solution

The fourth proportional to 110,467.60, 165,701.40 and 105,629.20 is: 158,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,467.60 : 165,701.40 = 105,629.20 : x
  2. Step 2: Convert to fraction form
    110,467.60/165,701.40 = 105,629.20/x
  3. Step 3: Cross multiply
    110,467.60x = 165,701.40 × 105,629.20
  4. Step 4: Simplify right side
    110,467.60x = 17,502,906,320.88
  5. Step 5: Solve for x
    x = 17,502,906,320.88/110,467.60
  6. Step 6: Final answer
    x = 158,443.80

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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.