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Finding the Fourth Proportional to 79,612.59, 109,866.21 and 45,620.33

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Solution

The fourth proportional to 79,612.59, 109,866.21 and 45,620.33 is: 62,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,612.59 : 109,866.21 = 45,620.33 : x
  2. Step 2: Convert to fraction form
    79,612.59/109,866.21 = 45,620.33/x
  3. Step 3: Cross multiply
    79,612.59x = 109,866.21 × 45,620.33
  4. Step 4: Simplify right side
    79,612.59x = 5,012,132,653.64
  5. Step 5: Solve for x
    x = 5,012,132,653.64/79,612.59
  6. Step 6: Final answer
    x = 62,956.53

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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.