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Finding the Fourth Proportional to 79,913.59, 110,320.68 and 49,708.63

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Solution

The fourth proportional to 79,913.59, 110,320.68 and 49,708.63 is: 68,622.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,913.59 : 110,320.68 = 49,708.63 : x
  2. Step 2: Convert to fraction form
    79,913.59/110,320.68 = 49,708.63/x
  3. Step 3: Cross multiply
    79,913.59x = 110,320.68 × 49,708.63
  4. Step 4: Simplify right side
    79,913.59x = 5,483,889,863.47
  5. Step 5: Solve for x
    x = 5,483,889,863.47/79,913.59
  6. Step 6: Final answer
    x = 68,622.74

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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.