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Finding the Fourth Proportional to 79,252.64, 109,370 and 43,440.36

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Solution

The fourth proportional to 79,252.64, 109,370 and 43,440.36 is: 59,948.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,252.64 : 109,370 = 43,440.36 : x
  2. Step 2: Convert to fraction form
    79,252.64/109,370 = 43,440.36/x
  3. Step 3: Cross multiply
    79,252.64x = 109,370 × 43,440.36
  4. Step 4: Simplify right side
    79,252.64x = 4,751,072,173.20
  5. Step 5: Solve for x
    x = 4,751,072,173.20/79,252.64
  6. Step 6: Final answer
    x = 59,948.44

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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.