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Finding the Fourth Proportional to 79,106.60, 109,167.16 and 43,296.60

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Solution

The fourth proportional to 79,106.60, 109,167.16 and 43,296.60 is: 59,749.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,106.60 : 109,167.16 = 43,296.60 : x
  2. Step 2: Convert to fraction form
    79,106.60/109,167.16 = 43,296.60/x
  3. Step 3: Cross multiply
    79,106.60x = 109,167.16 × 43,296.60
  4. Step 4: Simplify right side
    79,106.60x = 4,726,566,859.66
  5. Step 5: Solve for x
    x = 4,726,566,859.66/79,106.60
  6. Step 6: Final answer
    x = 59,749.34

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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.