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Finding the Fourth Proportional to 68,050.98, 102,053.79 and 28,600.74

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Solution

The fourth proportional to 68,050.98, 102,053.79 and 28,600.74 is: 42,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,050.98 : 102,053.79 = 28,600.74 : x
  2. Step 2: Convert to fraction form
    68,050.98/102,053.79 = 28,600.74/x
  3. Step 3: Cross multiply
    68,050.98x = 102,053.79 × 28,600.74
  4. Step 4: Simplify right side
    68,050.98x = 2,918,813,913.80
  5. Step 5: Solve for x
    x = 2,918,813,913.80/68,050.98
  6. Step 6: Final answer
    x = 42,891.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.