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Finding the Fourth Proportional to 104,756.28, 144,538.38 and 61,737.54

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Solution

The fourth proportional to 104,756.28, 144,538.38 and 61,737.54 is: 85,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,756.28 : 144,538.38 = 61,737.54 : x
  2. Step 2: Convert to fraction form
    104,756.28/144,538.38 = 61,737.54/x
  3. Step 3: Cross multiply
    104,756.28x = 144,538.38 × 61,737.54
  4. Step 4: Simplify right side
    104,756.28x = 8,923,444,016.79
  5. Step 5: Solve for x
    x = 8,923,444,016.79/104,756.28
  6. Step 6: Final answer
    x = 85,182.90

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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.