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Finding the Fourth Proportional to 104,295.60, 156,443.40 and 100,213.20

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Solution

The fourth proportional to 104,295.60, 156,443.40 and 100,213.20 is: 150,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,295.60 : 156,443.40 = 100,213.20 : x
  2. Step 2: Convert to fraction form
    104,295.60/156,443.40 = 100,213.20/x
  3. Step 3: Cross multiply
    104,295.60x = 156,443.40 × 100,213.20
  4. Step 4: Simplify right side
    104,295.60x = 15,677,693,732.88
  5. Step 5: Solve for x
    x = 15,677,693,732.88/104,295.60
  6. Step 6: Final answer
    x = 150,319.80

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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.