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Finding the Fourth Proportional to 231,912.40, 347,868.60 and 185,256.40

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Solution

The fourth proportional to 231,912.40, 347,868.60 and 185,256.40 is: 277,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,912.40 : 347,868.60 = 185,256.40 : x
  2. Step 2: Convert to fraction form
    231,912.40/347,868.60 = 185,256.40/x
  3. Step 3: Cross multiply
    231,912.40x = 347,868.60 × 185,256.40
  4. Step 4: Simplify right side
    231,912.40x = 64,444,884,509.04
  5. Step 5: Solve for x
    x = 64,444,884,509.04/231,912.40
  6. Step 6: Final answer
    x = 277,884.60

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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.