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Finding the Fourth Proportional to 93,676.70, 140,515.05 and 83,835.20

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Solution

The fourth proportional to 93,676.70, 140,515.05 and 83,835.20 is: 125,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,676.70 : 140,515.05 = 83,835.20 : x
  2. Step 2: Convert to fraction form
    93,676.70/140,515.05 = 83,835.20/x
  3. Step 3: Cross multiply
    93,676.70x = 140,515.05 × 83,835.20
  4. Step 4: Simplify right side
    93,676.70x = 11,780,107,319.76
  5. Step 5: Solve for x
    x = 11,780,107,319.76/93,676.70
  6. Step 6: Final answer
    x = 125,752.80

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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.