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Finding the Fourth Proportional to 68,148.64, 93,842.90 and 48,994.70

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Solution

The fourth proportional to 68,148.64, 93,842.90 and 48,994.70 is: 67,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,148.64 : 93,842.90 = 48,994.70 : x
  2. Step 2: Convert to fraction form
    68,148.64/93,842.90 = 48,994.70/x
  3. Step 3: Cross multiply
    68,148.64x = 93,842.90 × 48,994.70
  4. Step 4: Simplify right side
    68,148.64x = 4,597,804,732.63
  5. Step 5: Solve for x
    x = 4,597,804,732.63/68,148.64
  6. Step 6: Final answer
    x = 67,467.30

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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.