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Finding the Fourth Proportional to 79,166.48, 109,249.68 and 43,358.72

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Solution

The fourth proportional to 79,166.48, 109,249.68 and 43,358.72 is: 59,835.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,166.48 : 109,249.68 = 43,358.72 : x
  2. Step 2: Convert to fraction form
    79,166.48/109,249.68 = 43,358.72/x
  3. Step 3: Cross multiply
    79,166.48x = 109,249.68 × 43,358.72
  4. Step 4: Simplify right side
    79,166.48x = 4,736,926,285.21
  5. Step 5: Solve for x
    x = 4,736,926,285.21/79,166.48
  6. Step 6: Final answer
    x = 59,835.00

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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.