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Finding the Fourth Proportional to 163,469.60, 245,326.08 and 121,447.52

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Solution

The fourth proportional to 163,469.60, 245,326.08 and 121,447.52 is: 182,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,469.60 : 245,326.08 = 121,447.52 : x
  2. Step 2: Convert to fraction form
    163,469.60/245,326.08 = 121,447.52/x
  3. Step 3: Cross multiply
    163,469.60x = 245,326.08 × 121,447.52
  4. Step 4: Simplify right side
    163,469.60x = 29,794,244,007.32
  5. Step 5: Solve for x
    x = 29,794,244,007.32/163,469.60
  6. Step 6: Final answer
    x = 182,261.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.