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Finding the Fourth Proportional to 91,856.40, 137,743.03 and 32,693.64

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Solution

The fourth proportional to 91,856.40, 137,743.03 and 32,693.64 is: 49,025.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,856.40 : 137,743.03 = 32,693.64 : x
  2. Step 2: Convert to fraction form
    91,856.40/137,743.03 = 32,693.64/x
  3. Step 3: Cross multiply
    91,856.40x = 137,743.03 × 32,693.64
  4. Step 4: Simplify right side
    91,856.40x = 4,503,321,035.33
  5. Step 5: Solve for x
    x = 4,503,321,035.33/91,856.40
  6. Step 6: Final answer
    x = 49,025.66

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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.