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Finding the Fourth Proportional to 134,659.59, 185,832.54 and 74,229.81

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Solution

The fourth proportional to 134,659.59, 185,832.54 and 74,229.81 is: 102,438.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,659.59 : 185,832.54 = 74,229.81 : x
  2. Step 2: Convert to fraction form
    134,659.59/185,832.54 = 74,229.81/x
  3. Step 3: Cross multiply
    134,659.59x = 185,832.54 × 74,229.81
  4. Step 4: Simplify right side
    134,659.59x = 13,794,314,136.02
  5. Step 5: Solve for x
    x = 13,794,314,136.02/134,659.59
  6. Step 6: Final answer
    x = 102,438.41

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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.