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Finding the Fourth Proportional to 132,225.70, 198,318.30 and 43,479.40

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Solution

The fourth proportional to 132,225.70, 198,318.30 and 43,479.40 is: 65,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,225.70 : 198,318.30 = 43,479.40 : x
  2. Step 2: Convert to fraction form
    132,225.70/198,318.30 = 43,479.40/x
  3. Step 3: Cross multiply
    132,225.70x = 198,318.30 × 43,479.40
  4. Step 4: Simplify right side
    132,225.70x = 8,622,760,693.02
  5. Step 5: Solve for x
    x = 8,622,760,693.02/132,225.70
  6. Step 6: Final answer
    x = 65,212.44

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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.