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Finding the Fourth Proportional to 135,012.80, 202,519.20 and 41,506.40

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Solution

The fourth proportional to 135,012.80, 202,519.20 and 41,506.40 is: 62,259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,012.80 : 202,519.20 = 41,506.40 : x
  2. Step 2: Convert to fraction form
    135,012.80/202,519.20 = 41,506.40/x
  3. Step 3: Cross multiply
    135,012.80x = 202,519.20 × 41,506.40
  4. Step 4: Simplify right side
    135,012.80x = 8,405,842,922.88
  5. Step 5: Solve for x
    x = 8,405,842,922.88/135,012.80
  6. Step 6: Final answer
    x = 62,259.60

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1.5x scale

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.