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Finding the Fourth Proportional to 135,027.80, 202,541.70 and 41,521.40

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Solution

The fourth proportional to 135,027.80, 202,541.70 and 41,521.40 is: 62,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,027.80 : 202,541.70 = 41,521.40 : x
  2. Step 2: Convert to fraction form
    135,027.80/202,541.70 = 41,521.40/x
  3. Step 3: Cross multiply
    135,027.80x = 202,541.70 × 41,521.40
  4. Step 4: Simplify right side
    135,027.80x = 8,409,814,942.38
  5. Step 5: Solve for x
    x = 8,409,814,942.38/135,027.80
  6. Step 6: Final answer
    x = 62,282.10

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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.