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Finding the Fourth Proportional to 71,337.20, 107,236.20 and 50,703.60

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Solution

The fourth proportional to 71,337.20, 107,236.20 and 50,703.60 is: 76,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,337.20 : 107,236.20 = 50,703.60 : x
  2. Step 2: Convert to fraction form
    71,337.20/107,236.20 = 50,703.60/x
  3. Step 3: Cross multiply
    71,337.20x = 107,236.20 × 50,703.60
  4. Step 4: Simplify right side
    71,337.20x = 5,437,261,390.32
  5. Step 5: Solve for x
    x = 5,437,261,390.32/71,337.20
  6. Step 6: Final answer
    x = 76,219.16

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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.