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Finding the Fourth Proportional to 92,506.62, 138,815.28 and 39,916.10

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Solution

The fourth proportional to 92,506.62, 138,815.28 and 39,916.10 is: 59,898.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,506.62 : 138,815.28 = 39,916.10 : x
  2. Step 2: Convert to fraction form
    92,506.62/138,815.28 = 39,916.10/x
  3. Step 3: Cross multiply
    92,506.62x = 138,815.28 × 39,916.10
  4. Step 4: Simplify right side
    92,506.62x = 5,540,965,103.07
  5. Step 5: Solve for x
    x = 5,540,965,103.07/92,506.62
  6. Step 6: Final answer
    x = 59,898.04

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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.