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Finding the Fourth Proportional to 110,886.60, 166,329.90 and 109,720.20

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Solution

The fourth proportional to 110,886.60, 166,329.90 and 109,720.20 is: 164,580.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,886.60 : 166,329.90 = 109,720.20 : x
  2. Step 2: Convert to fraction form
    110,886.60/166,329.90 = 109,720.20/x
  3. Step 3: Cross multiply
    110,886.60x = 166,329.90 × 109,720.20
  4. Step 4: Simplify right side
    110,886.60x = 18,249,749,893.98
  5. Step 5: Solve for x
    x = 18,249,749,893.98/110,886.60
  6. Step 6: Final answer
    x = 164,580.30

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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.