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Finding the Fourth Proportional to 52,916.88, 79,394.76 and 38,142.48

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Solution

The fourth proportional to 52,916.88, 79,394.76 and 38,142.48 is: 57,227.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,916.88 : 79,394.76 = 38,142.48 : x
  2. Step 2: Convert to fraction form
    52,916.88/79,394.76 = 38,142.48/x
  3. Step 3: Cross multiply
    52,916.88x = 79,394.76 × 38,142.48
  4. Step 4: Simplify right side
    52,916.88x = 3,028,313,045.40
  5. Step 5: Solve for x
    x = 3,028,313,045.40/52,916.88
  6. Step 6: Final answer
    x = 57,227.73

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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.