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Finding the Fourth Proportional to 136,059.56, 187,764.43 and 74,808.33

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Solution

The fourth proportional to 136,059.56, 187,764.43 and 74,808.33 is: 103,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,059.56 : 187,764.43 = 74,808.33 : x
  2. Step 2: Convert to fraction form
    136,059.56/187,764.43 = 74,808.33/x
  3. Step 3: Cross multiply
    136,059.56x = 187,764.43 × 74,808.33
  4. Step 4: Simplify right side
    136,059.56x = 14,046,344,426.35
  5. Step 5: Solve for x
    x = 14,046,344,426.35/136,059.56
  6. Step 6: Final answer
    x = 103,236.74

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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.