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Finding the Fourth Proportional to 108,077.70, 162,212.55 and 63,648.90

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Solution

The fourth proportional to 108,077.70, 162,212.55 and 63,648.90 is: 95,529.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,077.70 : 162,212.55 = 63,648.90 : x
  2. Step 2: Convert to fraction form
    108,077.70/162,212.55 = 63,648.90/x
  3. Step 3: Cross multiply
    108,077.70x = 162,212.55 × 63,648.90
  4. Step 4: Simplify right side
    108,077.70x = 10,324,650,373.70
  5. Step 5: Solve for x
    x = 10,324,650,373.70/108,077.70
  6. Step 6: Final answer
    x = 95,529.89

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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.