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Finding the Fourth Proportional to 91,294.46, 137,054.44 and 43,308.94

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Solution

The fourth proportional to 91,294.46, 137,054.44 and 43,308.94 is: 65,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,294.46 : 137,054.44 = 43,308.94 : x
  2. Step 2: Convert to fraction form
    91,294.46/137,054.44 = 43,308.94/x
  3. Step 3: Cross multiply
    91,294.46x = 137,054.44 × 43,308.94
  4. Step 4: Simplify right side
    91,294.46x = 5,935,682,518.69
  5. Step 5: Solve for x
    x = 5,935,682,518.69/91,294.46
  6. Step 6: Final answer
    x = 65,016.90

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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.