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Finding the Fourth Proportional to 235,403.82, 324,859.38 and 127,974.06

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Solution

The fourth proportional to 235,403.82, 324,859.38 and 127,974.06 is: 176,605.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,403.82 : 324,859.38 = 127,974.06 : x
  2. Step 2: Convert to fraction form
    235,403.82/324,859.38 = 127,974.06/x
  3. Step 3: Cross multiply
    235,403.82x = 324,859.38 × 127,974.06
  4. Step 4: Simplify right side
    235,403.82x = 41,573,573,787.68
  5. Step 5: Solve for x
    x = 41,573,573,787.68/235,403.82
  6. Step 6: Final answer
    x = 176,605.35

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1.5x scale

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.