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Finding the Fourth Proportional to 94,912.64, 130,975.92 and 54,639.44

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Solution

The fourth proportional to 94,912.64, 130,975.92 and 54,639.44 is: 75,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,912.64 : 130,975.92 = 54,639.44 : x
  2. Step 2: Convert to fraction form
    94,912.64/130,975.92 = 54,639.44/x
  3. Step 3: Cross multiply
    94,912.64x = 130,975.92 × 54,639.44
  4. Step 4: Simplify right side
    94,912.64x = 7,156,450,922.28
  5. Step 5: Solve for x
    x = 7,156,450,922.28/94,912.64
  6. Step 6: Final answer
    x = 75,400.40

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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.