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Finding the Fourth Proportional to 75,617.80, 113,426.70 and 50,734.60

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Solution

The fourth proportional to 75,617.80, 113,426.70 and 50,734.60 is: 76,101.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,617.80 : 113,426.70 = 50,734.60 : x
  2. Step 2: Convert to fraction form
    75,617.80/113,426.70 = 50,734.60/x
  3. Step 3: Cross multiply
    75,617.80x = 113,426.70 × 50,734.60
  4. Step 4: Simplify right side
    75,617.80x = 5,754,658,253.82
  5. Step 5: Solve for x
    x = 5,754,658,253.82/75,617.80
  6. Step 6: Final answer
    x = 76,101.90

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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.