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Finding the Fourth Proportional to 56,699.70, 84,947.15 and 50,146.10

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Solution

The fourth proportional to 56,699.70, 84,947.15 and 50,146.10 is: 75,128.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,699.70 : 84,947.15 = 50,146.10 : x
  2. Step 2: Convert to fraction form
    56,699.70/84,947.15 = 50,146.10/x
  3. Step 3: Cross multiply
    56,699.70x = 84,947.15 × 50,146.10
  4. Step 4: Simplify right side
    56,699.70x = 4,259,768,278.62
  5. Step 5: Solve for x
    x = 4,259,768,278.62/56,699.70
  6. Step 6: Final answer
    x = 75,128.59

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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.