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Finding the Fourth Proportional to 79,461.49, 109,651.44 and 43,653.01

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Solution

The fourth proportional to 79,461.49, 109,651.44 and 43,653.01 is: 60,238.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,461.49 : 109,651.44 = 43,653.01 : x
  2. Step 2: Convert to fraction form
    79,461.49/109,651.44 = 43,653.01/x
  3. Step 3: Cross multiply
    79,461.49x = 109,651.44 × 43,653.01
  4. Step 4: Simplify right side
    79,461.49x = 4,786,615,406.83
  5. Step 5: Solve for x
    x = 4,786,615,406.83/79,461.49
  6. Step 6: Final answer
    x = 60,238.18

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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.