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Finding the Fourth Proportional to 235,361.78, 324,801.22 and 127,931.80

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Solution

The fourth proportional to 235,361.78, 324,801.22 and 127,931.80 is: 176,546.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,361.78 : 324,801.22 = 127,931.80 : x
  2. Step 2: Convert to fraction form
    235,361.78/324,801.22 = 127,931.80/x
  3. Step 3: Cross multiply
    235,361.78x = 324,801.22 × 127,931.80
  4. Step 4: Simplify right side
    235,361.78x = 41,552,404,716.80
  5. Step 5: Solve for x
    x = 41,552,404,716.80/235,361.78
  6. Step 6: Final answer
    x = 176,546.95

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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.