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Finding the Fourth Proportional to 57,208.68, 78,965.28 and 37,066.68

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Solution

The fourth proportional to 57,208.68, 78,965.28 and 37,066.68 is: 51,163.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208.68 : 78,965.28 = 37,066.68 : x
  2. Step 2: Convert to fraction form
    57,208.68/78,965.28 = 37,066.68/x
  3. Step 3: Cross multiply
    57,208.68x = 78,965.28 × 37,066.68
  4. Step 4: Simplify right side
    57,208.68x = 2,926,980,764.87
  5. Step 5: Solve for x
    x = 2,926,980,764.87/57,208.68
  6. Step 6: Final answer
    x = 51,163.23

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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.