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Finding the Fourth Proportional to 139,753, 192,862.56 and 76,094.26

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Solution

The fourth proportional to 139,753, 192,862.56 and 76,094.26 is: 105,011.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,753 : 192,862.56 = 76,094.26 : x
  2. Step 2: Convert to fraction form
    139,753/192,862.56 = 76,094.26/x
  3. Step 3: Cross multiply
    139,753x = 192,862.56 × 76,094.26
  4. Step 4: Simplify right side
    139,753x = 14,675,733,784.91
  5. Step 5: Solve for x
    x = 14,675,733,784.91/139,753
  6. Step 6: Final answer
    x = 105,011.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.