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Finding the Fourth Proportional to 134,768.60, 201,982.80 and 68,227.10

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Solution

The fourth proportional to 134,768.60, 201,982.80 and 68,227.10 is: 102,254.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,768.60 : 201,982.80 = 68,227.10 : x
  2. Step 2: Convert to fraction form
    134,768.60/201,982.80 = 68,227.10/x
  3. Step 3: Cross multiply
    134,768.60x = 201,982.80 × 68,227.10
  4. Step 4: Simplify right side
    134,768.60x = 13,780,700,693.88
  5. Step 5: Solve for x
    x = 13,780,700,693.88/134,768.60
  6. Step 6: Final answer
    x = 102,254.54

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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.