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Finding the Fourth Proportional to 355,963.97, 533,931.98 and 131,227.25

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Solution

The fourth proportional to 355,963.97, 533,931.98 and 131,227.25 is: 196,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,963.97 : 533,931.98 = 131,227.25 : x
  2. Step 2: Convert to fraction form
    355,963.97/533,931.98 = 131,227.25/x
  3. Step 3: Cross multiply
    355,963.97x = 533,931.98 × 131,227.25
  4. Step 4: Simplify right side
    355,963.97x = 70,066,422,096.66
  5. Step 5: Solve for x
    x = 70,066,422,096.66/355,963.97
  6. Step 6: Final answer
    x = 196,835.72

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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.