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Finding the Fourth Proportional to 79,250.48, 109,368.42 and 43,440.46

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Solution

The fourth proportional to 79,250.48, 109,368.42 and 43,440.46 is: 59,949.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,250.48 : 109,368.42 = 43,440.46 : x
  2. Step 2: Convert to fraction form
    79,250.48/109,368.42 = 43,440.46/x
  3. Step 3: Cross multiply
    79,250.48x = 109,368.42 × 43,440.46
  4. Step 4: Simplify right side
    79,250.48x = 4,751,014,474.27
  5. Step 5: Solve for x
    x = 4,751,014,474.27/79,250.48
  6. Step 6: Final answer
    x = 59,949.35

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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.