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Finding the Fourth Proportional to 79,464.65, 109,663.22 and 43,658.00

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Solution

The fourth proportional to 79,464.65, 109,663.22 and 43,658.00 is: 60,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,464.65 : 109,663.22 = 43,658.00 : x
  2. Step 2: Convert to fraction form
    79,464.65/109,663.22 = 43,658.00/x
  3. Step 3: Cross multiply
    79,464.65x = 109,663.22 × 43,658.00
  4. Step 4: Simplify right side
    79,464.65x = 4,787,676,419.59
  5. Step 5: Solve for x
    x = 4,787,676,419.59/79,464.65
  6. Step 6: Final answer
    x = 60,249.13

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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.