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Finding the Fourth Proportional to 70,068.66, 96,556.11 and 49,869

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Solution

The fourth proportional to 70,068.66, 96,556.11 and 49,869 is: 68,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,068.66 : 96,556.11 = 49,869 : x
  2. Step 2: Convert to fraction form
    70,068.66/96,556.11 = 49,869/x
  3. Step 3: Cross multiply
    70,068.66x = 96,556.11 × 49,869
  4. Step 4: Simplify right side
    70,068.66x = 4,815,156,649.59
  5. Step 5: Solve for x
    x = 4,815,156,649.59/70,068.66
  6. Step 6: Final answer
    x = 68,720.55

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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.