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Finding the Fourth Proportional to 69,573.95, 95,975.28 and 49,438.97

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Solution

The fourth proportional to 69,573.95, 95,975.28 and 49,438.97 is: 68,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,573.95 : 95,975.28 = 49,438.97 : x
  2. Step 2: Convert to fraction form
    69,573.95/95,975.28 = 49,438.97/x
  3. Step 3: Cross multiply
    69,573.95x = 95,975.28 × 49,438.97
  4. Step 4: Simplify right side
    69,573.95x = 4,744,918,988.66
  5. Step 5: Solve for x
    x = 4,744,918,988.66/69,573.95
  6. Step 6: Final answer
    x = 68,199.65

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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.