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Finding the Fourth Proportional to 90,040.68, 134,953.20 and 41,944.50

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Solution

The fourth proportional to 90,040.68, 134,953.20 and 41,944.50 is: 62,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,040.68 : 134,953.20 = 41,944.50 : x
  2. Step 2: Convert to fraction form
    90,040.68/134,953.20 = 41,944.50/x
  3. Step 3: Cross multiply
    90,040.68x = 134,953.20 × 41,944.50
  4. Step 4: Simplify right side
    90,040.68x = 5,660,544,497.40
  5. Step 5: Solve for x
    x = 5,660,544,497.40/90,040.68
  6. Step 6: Final answer
    x = 62,866.52

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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.