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Finding the Fourth Proportional to 158,406.72, 218,629.44 and 94,751.52

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Solution

The fourth proportional to 158,406.72, 218,629.44 and 94,751.52 is: 130,773.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,406.72 : 218,629.44 = 94,751.52 : x
  2. Step 2: Convert to fraction form
    158,406.72/218,629.44 = 94,751.52/x
  3. Step 3: Cross multiply
    158,406.72x = 218,629.44 × 94,751.52
  4. Step 4: Simplify right side
    158,406.72x = 20,715,471,756.75
  5. Step 5: Solve for x
    x = 20,715,471,756.75/158,406.72
  6. Step 6: Final answer
    x = 130,773.95

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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.