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Finding the Fourth Proportional to 101,892.60, 140,628.60 and 56,585.07

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Solution

The fourth proportional to 101,892.60, 140,628.60 and 56,585.07 is: 78,096.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,892.60 : 140,628.60 = 56,585.07 : x
  2. Step 2: Convert to fraction form
    101,892.60/140,628.60 = 56,585.07/x
  3. Step 3: Cross multiply
    101,892.60x = 140,628.60 × 56,585.07
  4. Step 4: Simplify right side
    101,892.60x = 7,957,479,175.00
  5. Step 5: Solve for x
    x = 7,957,479,175.00/101,892.60
  6. Step 6: Final answer
    x = 78,096.73

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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.