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Finding the Fourth Proportional to 61,606.38, 84,951.16 and 48,662.90

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Solution

The fourth proportional to 61,606.38, 84,951.16 and 48,662.90 is: 67,102.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,606.38 : 84,951.16 = 48,662.90 : x
  2. Step 2: Convert to fraction form
    61,606.38/84,951.16 = 48,662.90/x
  3. Step 3: Cross multiply
    61,606.38x = 84,951.16 × 48,662.90
  4. Step 4: Simplify right side
    61,606.38x = 4,133,969,894.68
  5. Step 5: Solve for x
    x = 4,133,969,894.68/61,606.38
  6. Step 6: Final answer
    x = 67,102.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.