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Finding the Fourth Proportional to 63,971.80, 95,957.70 and 61,379.80

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Solution

The fourth proportional to 63,971.80, 95,957.70 and 61,379.80 is: 92,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,971.80 : 95,957.70 = 61,379.80 : x
  2. Step 2: Convert to fraction form
    63,971.80/95,957.70 = 61,379.80/x
  3. Step 3: Cross multiply
    63,971.80x = 95,957.70 × 61,379.80
  4. Step 4: Simplify right side
    63,971.80x = 5,889,864,434.46
  5. Step 5: Solve for x
    x = 5,889,864,434.46/63,971.80
  6. Step 6: Final answer
    x = 92,069.70

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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.