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Finding the Fourth Proportional to 193,449.42, 267,130.44 and 120,976.56

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Solution

The fourth proportional to 193,449.42, 267,130.44 and 120,976.56 is: 167,054.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,449.42 : 267,130.44 = 120,976.56 : x
  2. Step 2: Convert to fraction form
    193,449.42/267,130.44 = 120,976.56/x
  3. Step 3: Cross multiply
    193,449.42x = 267,130.44 × 120,976.56
  4. Step 4: Simplify right side
    193,449.42x = 32,316,521,702.49
  5. Step 5: Solve for x
    x = 32,316,521,702.49/193,449.42
  6. Step 6: Final answer
    x = 167,054.12

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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.