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Finding the Fourth Proportional to 76,950.80, 115,426.20 and 41,958.80

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Solution

The fourth proportional to 76,950.80, 115,426.20 and 41,958.80 is: 62,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,950.80 : 115,426.20 = 41,958.80 : x
  2. Step 2: Convert to fraction form
    76,950.80/115,426.20 = 41,958.80/x
  3. Step 3: Cross multiply
    76,950.80x = 115,426.20 × 41,958.80
  4. Step 4: Simplify right side
    76,950.80x = 4,843,144,840.56
  5. Step 5: Solve for x
    x = 4,843,144,840.56/76,950.80
  6. Step 6: Final answer
    x = 62,938.20

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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.