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Finding the Fourth Proportional to 73,968.34, 102,076.17 and 40,434.34

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Solution

The fourth proportional to 73,968.34, 102,076.17 and 40,434.34 is: 55,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,968.34 : 102,076.17 = 40,434.34 : x
  2. Step 2: Convert to fraction form
    73,968.34/102,076.17 = 40,434.34/x
  3. Step 3: Cross multiply
    73,968.34x = 102,076.17 × 40,434.34
  4. Step 4: Simplify right side
    73,968.34x = 4,127,382,563.68
  5. Step 5: Solve for x
    x = 4,127,382,563.68/73,968.34
  6. Step 6: Final answer
    x = 55,799.31

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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.