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Finding the Fourth Proportional to 136,884.87, 205,190.01 and 56,813.94

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Solution

The fourth proportional to 136,884.87, 205,190.01 and 56,813.94 is: 85,163.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,884.87 : 205,190.01 = 56,813.94 : x
  2. Step 2: Convert to fraction form
    136,884.87/205,190.01 = 56,813.94/x
  3. Step 3: Cross multiply
    136,884.87x = 205,190.01 × 56,813.94
  4. Step 4: Simplify right side
    136,884.87x = 11,657,652,916.74
  5. Step 5: Solve for x
    x = 11,657,652,916.74/136,884.87
  6. Step 6: Final answer
    x = 85,163.93

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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.