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Finding the Fourth Proportional to 63,971.80, 96,072.90 and 61,898.20

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Solution

The fourth proportional to 63,971.80, 96,072.90 and 61,898.20 is: 92,958.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,971.80 : 96,072.90 = 61,898.20 : x
  2. Step 2: Convert to fraction form
    63,971.80/96,072.90 = 61,898.20/x
  3. Step 3: Cross multiply
    63,971.80x = 96,072.90 × 61,898.20
  4. Step 4: Simplify right side
    63,971.80x = 5,946,739,578.78
  5. Step 5: Solve for x
    x = 5,946,739,578.78/63,971.80
  6. Step 6: Final answer
    x = 92,958.77

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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.