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Finding the Fourth Proportional to 73,133.28, 109,524.96 and 69,459.12

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Solution

The fourth proportional to 73,133.28, 109,524.96 and 69,459.12 is: 104,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,133.28 : 109,524.96 = 69,459.12 : x
  2. Step 2: Convert to fraction form
    73,133.28/109,524.96 = 69,459.12/x
  3. Step 3: Cross multiply
    73,133.28x = 109,524.96 × 69,459.12
  4. Step 4: Simplify right side
    73,133.28x = 7,607,507,339.64
  5. Step 5: Solve for x
    x = 7,607,507,339.64/73,133.28
  6. Step 6: Final answer
    x = 104,022.51

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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.