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Finding the Fourth Proportional to 79,038.88, 109,076.49 and 45,052.49

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Solution

The fourth proportional to 79,038.88, 109,076.49 and 45,052.49 is: 62,174.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,038.88 : 109,076.49 = 45,052.49 : x
  2. Step 2: Convert to fraction form
    79,038.88/109,076.49 = 45,052.49/x
  3. Step 3: Cross multiply
    79,038.88x = 109,076.49 × 45,052.49
  4. Step 4: Simplify right side
    79,038.88x = 4,914,167,747.65
  5. Step 5: Solve for x
    x = 4,914,167,747.65/79,038.88
  6. Step 6: Final answer
    x = 62,174.06

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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.