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Finding the Fourth Proportional to 104,022.40, 156,033.60 and 99,648.40

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Solution

The fourth proportional to 104,022.40, 156,033.60 and 99,648.40 is: 149,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,022.40 : 156,033.60 = 99,648.40 : x
  2. Step 2: Convert to fraction form
    104,022.40/156,033.60 = 99,648.40/x
  3. Step 3: Cross multiply
    104,022.40x = 156,033.60 × 99,648.40
  4. Step 4: Simplify right side
    104,022.40x = 15,548,498,586.24
  5. Step 5: Solve for x
    x = 15,548,498,586.24/104,022.40
  6. Step 6: Final answer
    x = 149,472.60

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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.