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Finding the Fourth Proportional to 73,288.40, 101,138.44 and 39,754.48

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Solution

The fourth proportional to 73,288.40, 101,138.44 and 39,754.48 is: 54,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,288.40 : 101,138.44 = 39,754.48 : x
  2. Step 2: Convert to fraction form
    73,288.40/101,138.44 = 39,754.48/x
  3. Step 3: Cross multiply
    73,288.40x = 101,138.44 × 39,754.48
  4. Step 4: Simplify right side
    73,288.40x = 4,020,706,090.21
  5. Step 5: Solve for x
    x = 4,020,706,090.21/73,288.40
  6. Step 6: Final answer
    x = 54,861.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.