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Finding the Fourth Proportional to 110,281.30, 165,093.90 and 65,885.20

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Solution

The fourth proportional to 110,281.30, 165,093.90 and 65,885.20 is: 98,631.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,281.30 : 165,093.90 = 65,885.20 : x
  2. Step 2: Convert to fraction form
    110,281.30/165,093.90 = 65,885.20/x
  3. Step 3: Cross multiply
    110,281.30x = 165,093.90 × 65,885.20
  4. Step 4: Simplify right side
    110,281.30x = 10,877,244,620.28
  5. Step 5: Solve for x
    x = 10,877,244,620.28/110,281.30
  6. Step 6: Final answer
    x = 98,631.81

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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.