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Finding the Fourth Proportional to 92,078.38, 138,120.24 and 35,916.22

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Solution

The fourth proportional to 92,078.38, 138,120.24 and 35,916.22 is: 53,875.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,078.38 : 138,120.24 = 35,916.22 : x
  2. Step 2: Convert to fraction form
    92,078.38/138,120.24 = 35,916.22/x
  3. Step 3: Cross multiply
    92,078.38x = 138,120.24 × 35,916.22
  4. Step 4: Simplify right side
    92,078.38x = 4,960,756,926.29
  5. Step 5: Solve for x
    x = 4,960,756,926.29/92,078.38
  6. Step 6: Final answer
    x = 53,875.37

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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.