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Finding the Fourth Proportional to 90,595.37, 135,903.86 and 43,814.63

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Solution

The fourth proportional to 90,595.37, 135,903.86 and 43,814.63 is: 65,727.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,595.37 : 135,903.86 = 43,814.63 : x
  2. Step 2: Convert to fraction form
    90,595.37/135,903.86 = 43,814.63/x
  3. Step 3: Cross multiply
    90,595.37x = 135,903.86 × 43,814.63
  4. Step 4: Simplify right side
    90,595.37x = 5,954,576,442.88
  5. Step 5: Solve for x
    x = 5,954,576,442.88/90,595.37
  6. Step 6: Final answer
    x = 65,727.16

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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.