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Finding the Fourth Proportional to 132,564.60, 198,628.20 and 65,861.10

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Solution

The fourth proportional to 132,564.60, 198,628.20 and 65,861.10 is: 98,682.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,564.60 : 198,628.20 = 65,861.10 : x
  2. Step 2: Convert to fraction form
    132,564.60/198,628.20 = 65,861.10/x
  3. Step 3: Cross multiply
    132,564.60x = 198,628.20 × 65,861.10
  4. Step 4: Simplify right side
    132,564.60x = 13,081,871,743.02
  5. Step 5: Solve for x
    x = 13,081,871,743.02/132,564.60
  6. Step 6: Final answer
    x = 98,682.99

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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.