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Finding the Fourth Proportional to 79,469.53, 109,630.06 and 57,913.06

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Solution

The fourth proportional to 79,469.53, 109,630.06 and 57,913.06 is: 79,892.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,469.53 : 109,630.06 = 57,913.06 : x
  2. Step 2: Convert to fraction form
    79,469.53/109,630.06 = 57,913.06/x
  3. Step 3: Cross multiply
    79,469.53x = 109,630.06 × 57,913.06
  4. Step 4: Simplify right side
    79,469.53x = 6,349,012,242.58
  5. Step 5: Solve for x
    x = 6,349,012,242.58/79,469.53
  6. Step 6: Final answer
    x = 79,892.41

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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.