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Finding the Fourth Proportional to 132,312.36, 198,469.20 and 65,736.84

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Solution

The fourth proportional to 132,312.36, 198,469.20 and 65,736.84 is: 98,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,312.36 : 198,469.20 = 65,736.84 : x
  2. Step 2: Convert to fraction form
    132,312.36/198,469.20 = 65,736.84/x
  3. Step 3: Cross multiply
    132,312.36x = 198,469.20 × 65,736.84
  4. Step 4: Simplify right side
    132,312.36x = 13,046,738,045.33
  5. Step 5: Solve for x
    x = 13,046,738,045.33/132,312.36
  6. Step 6: Final answer
    x = 98,605.59

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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.