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Finding the Fourth Proportional to 168,025.40, 252,059.70 and 83,828.60

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Solution

The fourth proportional to 168,025.40, 252,059.70 and 83,828.60 is: 125,753.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,025.40 : 252,059.70 = 83,828.60 : x
  2. Step 2: Convert to fraction form
    168,025.40/252,059.70 = 83,828.60/x
  3. Step 3: Cross multiply
    168,025.40x = 252,059.70 × 83,828.60
  4. Step 4: Simplify right side
    168,025.40x = 21,129,811,767.42
  5. Step 5: Solve for x
    x = 21,129,811,767.42/168,025.40
  6. Step 6: Final answer
    x = 125,753.68

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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.