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Finding the Fourth Proportional to 61,162.60, 91,743.90 and 44,487.40

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Solution

The fourth proportional to 61,162.60, 91,743.90 and 44,487.40 is: 66,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,162.60 : 91,743.90 = 44,487.40 : x
  2. Step 2: Convert to fraction form
    61,162.60/91,743.90 = 44,487.40/x
  3. Step 3: Cross multiply
    61,162.60x = 91,743.90 × 44,487.40
  4. Step 4: Simplify right side
    61,162.60x = 4,081,447,576.86
  5. Step 5: Solve for x
    x = 4,081,447,576.86/61,162.60
  6. Step 6: Final answer
    x = 66,731.10

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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.