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Finding the Fourth Proportional to 74,085.08, 102,237.21 and 40,093.63

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Solution

The fourth proportional to 74,085.08, 102,237.21 and 40,093.63 is: 55,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,085.08 : 102,237.21 = 40,093.63 : x
  2. Step 2: Convert to fraction form
    74,085.08/102,237.21 = 40,093.63/x
  3. Step 3: Cross multiply
    74,085.08x = 102,237.21 × 40,093.63
  4. Step 4: Simplify right side
    74,085.08x = 4,099,060,614.38
  5. Step 5: Solve for x
    x = 4,099,060,614.38/74,085.08
  6. Step 6: Final answer
    x = 55,329.10

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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.