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Finding the Fourth Proportional to 101,504.16, 151,964.64 and 76,426.56

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Solution

The fourth proportional to 101,504.16, 151,964.64 and 76,426.56 is: 114,420.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,504.16 : 151,964.64 = 76,426.56 : x
  2. Step 2: Convert to fraction form
    101,504.16/151,964.64 = 76,426.56/x
  3. Step 3: Cross multiply
    101,504.16x = 151,964.64 × 76,426.56
  4. Step 4: Simplify right side
    101,504.16x = 11,614,134,676.84
  5. Step 5: Solve for x
    x = 11,614,134,676.84/101,504.16
  6. Step 6: Final answer
    x = 114,420.28

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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.