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Finding the Fourth Proportional to 104,756.25, 144,538.41 and 61,737.45

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Solution

The fourth proportional to 104,756.25, 144,538.41 and 61,737.45 is: 85,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,756.25 : 144,538.41 = 61,737.45 : x
  2. Step 2: Convert to fraction form
    104,756.25/144,538.41 = 61,737.45/x
  3. Step 3: Cross multiply
    104,756.25x = 144,538.41 × 61,737.45
  4. Step 4: Simplify right side
    104,756.25x = 8,923,433,633.99
  5. Step 5: Solve for x
    x = 8,923,433,633.99/104,756.25
  6. Step 6: Final answer
    x = 85,182.83

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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.