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Finding the Fourth Proportional to 135,263.80, 202,506.90 and 82,775.80

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Solution

The fourth proportional to 135,263.80, 202,506.90 and 82,775.80 is: 123,925.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,263.80 : 202,506.90 = 82,775.80 : x
  2. Step 2: Convert to fraction form
    135,263.80/202,506.90 = 82,775.80/x
  3. Step 3: Cross multiply
    135,263.80x = 202,506.90 × 82,775.80
  4. Step 4: Simplify right side
    135,263.80x = 16,762,670,653.02
  5. Step 5: Solve for x
    x = 16,762,670,653.02/135,263.80
  6. Step 6: Final answer
    x = 123,925.77

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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.