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Finding the Fourth Proportional to 68,053.94, 93,924.64 and 48,996.78

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Solution

The fourth proportional to 68,053.94, 93,924.64 and 48,996.78 is: 67,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,053.94 : 93,924.64 = 48,996.78 : x
  2. Step 2: Convert to fraction form
    68,053.94/93,924.64 = 48,996.78/x
  3. Step 3: Cross multiply
    68,053.94x = 93,924.64 × 48,996.78
  4. Step 4: Simplify right side
    68,053.94x = 4,602,004,922.66
  5. Step 5: Solve for x
    x = 4,602,004,922.66/68,053.94
  6. Step 6: Final answer
    x = 67,622.90

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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.