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Finding the Fourth Proportional to 79,681.50, 109,960.47 and 44,353.50

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Solution

The fourth proportional to 79,681.50, 109,960.47 and 44,353.50 is: 61,207.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,681.50 : 109,960.47 = 44,353.50 : x
  2. Step 2: Convert to fraction form
    79,681.50/109,960.47 = 44,353.50/x
  3. Step 3: Cross multiply
    79,681.50x = 109,960.47 × 44,353.50
  4. Step 4: Simplify right side
    79,681.50x = 4,877,131,706.15
  5. Step 5: Solve for x
    x = 4,877,131,706.15/79,681.50
  6. Step 6: Final answer
    x = 61,207.83

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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.