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Finding the Fourth Proportional to 102,093.68, 140,892.70 and 56,155.27

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Solution

The fourth proportional to 102,093.68, 140,892.70 and 56,155.27 is: 77,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,093.68 : 140,892.70 = 56,155.27 : x
  2. Step 2: Convert to fraction form
    102,093.68/140,892.70 = 56,155.27/x
  3. Step 3: Cross multiply
    102,093.68x = 140,892.70 × 56,155.27
  4. Step 4: Simplify right side
    102,093.68x = 7,911,867,245.45
  5. Step 5: Solve for x
    x = 7,911,867,245.45/102,093.68
  6. Step 6: Final answer
    x = 77,496.15

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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.