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Finding the Fourth Proportional to 57,148.88, 78,867.88 and 33,271.70

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Solution

The fourth proportional to 57,148.88, 78,867.88 and 33,271.70 is: 45,916.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,148.88 : 78,867.88 = 33,271.70 : x
  2. Step 2: Convert to fraction form
    57,148.88/78,867.88 = 33,271.70/x
  3. Step 3: Cross multiply
    57,148.88x = 78,867.88 × 33,271.70
  4. Step 4: Simplify right side
    57,148.88x = 2,624,067,965.48
  5. Step 5: Solve for x
    x = 2,624,067,965.48/57,148.88
  6. Step 6: Final answer
    x = 45,916.35

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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.