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Finding the Fourth Proportional to 135,245.40, 202,868.10 and 135,245.40

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Solution

The fourth proportional to 135,245.40, 202,868.10 and 135,245.40 is: 202,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,245.40 : 202,868.10 = 135,245.40 : x
  2. Step 2: Convert to fraction form
    135,245.40/202,868.10 = 135,245.40/x
  3. Step 3: Cross multiply
    135,245.40x = 202,868.10 × 135,245.40
  4. Step 4: Simplify right side
    135,245.40x = 27,436,977,331.74
  5. Step 5: Solve for x
    x = 27,436,977,331.74/135,245.40
  6. Step 6: Final answer
    x = 202,868.10

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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.