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Finding the Fourth Proportional to 79,465.83, 109,662.40 and 43,655.08

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Solution

The fourth proportional to 79,465.83, 109,662.40 and 43,655.08 is: 60,243.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,465.83 : 109,662.40 = 43,655.08 : x
  2. Step 2: Convert to fraction form
    79,465.83/109,662.40 = 43,655.08/x
  3. Step 3: Cross multiply
    79,465.83x = 109,662.40 × 43,655.08
  4. Step 4: Simplify right side
    79,465.83x = 4,787,320,844.99
  5. Step 5: Solve for x
    x = 4,787,320,844.99/79,465.83
  6. Step 6: Final answer
    x = 60,243.77

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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.