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Finding the Fourth Proportional to 75,917.80, 113,876.70 and 56,234.80

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Solution

The fourth proportional to 75,917.80, 113,876.70 and 56,234.80 is: 84,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,917.80 : 113,876.70 = 56,234.80 : x
  2. Step 2: Convert to fraction form
    75,917.80/113,876.70 = 56,234.80/x
  3. Step 3: Cross multiply
    75,917.80x = 113,876.70 × 56,234.80
  4. Step 4: Simplify right side
    75,917.80x = 6,403,833,449.16
  5. Step 5: Solve for x
    x = 6,403,833,449.16/75,917.80
  6. Step 6: Final answer
    x = 84,352.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.