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Finding the Fourth Proportional to 68,625.68, 102,916.62 and 35,341.38

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Solution

The fourth proportional to 68,625.68, 102,916.62 and 35,341.38 is: 53,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,625.68 : 102,916.62 = 35,341.38 : x
  2. Step 2: Convert to fraction form
    68,625.68/102,916.62 = 35,341.38/x
  3. Step 3: Cross multiply
    68,625.68x = 102,916.62 × 35,341.38
  4. Step 4: Simplify right side
    68,625.68x = 3,637,215,375.74
  5. Step 5: Solve for x
    x = 3,637,215,375.74/68,625.68
  6. Step 6: Final answer
    x = 53,000.80

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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.