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Finding the Fourth Proportional to 68,916.15, 95,119.11 and 42,052.91

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Solution

The fourth proportional to 68,916.15, 95,119.11 and 42,052.91 is: 58,042.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,916.15 : 95,119.11 = 42,052.91 : x
  2. Step 2: Convert to fraction form
    68,916.15/95,119.11 = 42,052.91/x
  3. Step 3: Cross multiply
    68,916.15x = 95,119.11 × 42,052.91
  4. Step 4: Simplify right side
    68,916.15x = 4,000,035,372.11
  5. Step 5: Solve for x
    x = 4,000,035,372.11/68,916.15
  6. Step 6: Final answer
    x = 58,042.06

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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.