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Finding the Fourth Proportional to 65,916.32, 98,759.28 and 54,893.92

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Solution

The fourth proportional to 65,916.32, 98,759.28 and 54,893.92 is: 82,244.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,916.32 : 98,759.28 = 54,893.92 : x
  2. Step 2: Convert to fraction form
    65,916.32/98,759.28 = 54,893.92/x
  3. Step 3: Cross multiply
    65,916.32x = 98,759.28 × 54,893.92
  4. Step 4: Simplify right side
    65,916.32x = 5,421,284,015.58
  5. Step 5: Solve for x
    x = 5,421,284,015.58/65,916.32
  6. Step 6: Final answer
    x = 82,244.94

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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.