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Finding the Fourth Proportional to 110,418.60, 165,627.90 and 73,020.90

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Solution

The fourth proportional to 110,418.60, 165,627.90 and 73,020.90 is: 109,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,418.60 : 165,627.90 = 73,020.90 : x
  2. Step 2: Convert to fraction form
    110,418.60/165,627.90 = 73,020.90/x
  3. Step 3: Cross multiply
    110,418.60x = 165,627.90 × 73,020.90
  4. Step 4: Simplify right side
    110,418.60x = 12,094,298,323.11
  5. Step 5: Solve for x
    x = 12,094,298,323.11/110,418.60
  6. Step 6: Final answer
    x = 109,531.35

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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.