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Finding the Fourth Proportional to 104,466.70, 156,700.05 and 70,786.90

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Solution

The fourth proportional to 104,466.70, 156,700.05 and 70,786.90 is: 106,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,466.70 : 156,700.05 = 70,786.90 : x
  2. Step 2: Convert to fraction form
    104,466.70/156,700.05 = 70,786.90/x
  3. Step 3: Cross multiply
    104,466.70x = 156,700.05 × 70,786.90
  4. Step 4: Simplify right side
    104,466.70x = 11,092,310,769.35
  5. Step 5: Solve for x
    x = 11,092,310,769.35/104,466.70
  6. Step 6: Final answer
    x = 106,180.35

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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.