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Finding the Fourth Proportional to 139,492.86, 192,497.84 and 75,832.26

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Solution

The fourth proportional to 139,492.86, 192,497.84 and 75,832.26 is: 104,647.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,492.86 : 192,497.84 = 75,832.26 : x
  2. Step 2: Convert to fraction form
    139,492.86/192,497.84 = 75,832.26/x
  3. Step 3: Cross multiply
    139,492.86x = 192,497.84 × 75,832.26
  4. Step 4: Simplify right side
    139,492.86x = 14,597,546,252.32
  5. Step 5: Solve for x
    x = 14,597,546,252.32/139,492.86
  6. Step 6: Final answer
    x = 104,647.26

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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.