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Finding the Fourth Proportional to 104,638.70, 156,958.05 and 52,150.70

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Solution

The fourth proportional to 104,638.70, 156,958.05 and 52,150.70 is: 78,226.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,638.70 : 156,958.05 = 52,150.70 : x
  2. Step 2: Convert to fraction form
    104,638.70/156,958.05 = 52,150.70/x
  3. Step 3: Cross multiply
    104,638.70x = 156,958.05 × 52,150.70
  4. Step 4: Simplify right side
    104,638.70x = 8,185,472,178.14
  5. Step 5: Solve for x
    x = 8,185,472,178.14/104,638.70
  6. Step 6: Final answer
    x = 78,226.05

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1.5x scale

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.