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Finding the Fourth Proportional to 135,020.80, 202,531.20 and 41,526.40

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Solution

The fourth proportional to 135,020.80, 202,531.20 and 41,526.40 is: 62,289.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,020.80 : 202,531.20 = 41,526.40 : x
  2. Step 2: Convert to fraction form
    135,020.80/202,531.20 = 41,526.40/x
  3. Step 3: Cross multiply
    135,020.80x = 202,531.20 × 41,526.40
  4. Step 4: Simplify right side
    135,020.80x = 8,410,391,623.68
  5. Step 5: Solve for x
    x = 8,410,391,623.68/135,020.80
  6. Step 6: Final answer
    x = 62,289.60

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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.