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Finding the Fourth Proportional to 70,984.61, 97,759.43 and 69,434.57

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Solution

The fourth proportional to 70,984.61, 97,759.43 and 69,434.57 is: 95,624.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,984.61 : 97,759.43 = 69,434.57 : x
  2. Step 2: Convert to fraction form
    70,984.61/97,759.43 = 69,434.57/x
  3. Step 3: Cross multiply
    70,984.61x = 97,759.43 × 69,434.57
  4. Step 4: Simplify right side
    70,984.61x = 6,787,883,882.72
  5. Step 5: Solve for x
    x = 6,787,883,882.72/70,984.61
  6. Step 6: Final answer
    x = 95,624.73

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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.