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Finding the Fourth Proportional to 79,710.71, 110,005.75 and 43,900.71

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Solution

The fourth proportional to 79,710.71, 110,005.75 and 43,900.71 is: 60,585.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,710.71 : 110,005.75 = 43,900.71 : x
  2. Step 2: Convert to fraction form
    79,710.71/110,005.75 = 43,900.71/x
  3. Step 3: Cross multiply
    79,710.71x = 110,005.75 × 43,900.71
  4. Step 4: Simplify right side
    79,710.71x = 4,829,330,171.44
  5. Step 5: Solve for x
    x = 4,829,330,171.44/79,710.71
  6. Step 6: Final answer
    x = 60,585.72

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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.