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Finding the Fourth Proportional to 78,713.73, 108,606.29 and 44,722.89

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Solution

The fourth proportional to 78,713.73, 108,606.29 and 44,722.89 is: 61,706.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,713.73 : 108,606.29 = 44,722.89 : x
  2. Step 2: Convert to fraction form
    78,713.73/108,606.29 = 44,722.89/x
  3. Step 3: Cross multiply
    78,713.73x = 108,606.29 × 44,722.89
  4. Step 4: Simplify right side
    78,713.73x = 4,857,186,937.36
  5. Step 5: Solve for x
    x = 4,857,186,937.36/78,713.73
  6. Step 6: Final answer
    x = 61,706.98

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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.