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Finding the Fourth Proportional to 185,651.64, 256,177.92 and 103,968.48

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Solution

The fourth proportional to 185,651.64, 256,177.92 and 103,968.48 is: 143,464.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,651.64 : 256,177.92 = 103,968.48 : x
  2. Step 2: Convert to fraction form
    185,651.64/256,177.92 = 103,968.48/x
  3. Step 3: Cross multiply
    185,651.64x = 256,177.92 × 103,968.48
  4. Step 4: Simplify right side
    185,651.64x = 26,634,428,951.96
  5. Step 5: Solve for x
    x = 26,634,428,951.96/185,651.64
  6. Step 6: Final answer
    x = 143,464.55

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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.