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Finding the Fourth Proportional to 235,390.54, 324,835.12 and 127,963.28

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Solution

The fourth proportional to 235,390.54, 324,835.12 and 127,963.28 is: 176,587.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,390.54 : 324,835.12 = 127,963.28 : x
  2. Step 2: Convert to fraction form
    235,390.54/324,835.12 = 127,963.28/x
  3. Step 3: Cross multiply
    235,390.54x = 324,835.12 × 127,963.28
  4. Step 4: Simplify right side
    235,390.54x = 41,566,967,414.39
  5. Step 5: Solve for x
    x = 41,566,967,414.39/235,390.54
  6. Step 6: Final answer
    x = 176,587.25

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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.