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Finding the Fourth Proportional to 68,234.70, 94,092.12 and 53,870.70

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Solution

The fourth proportional to 68,234.70, 94,092.12 and 53,870.70 is: 74,284.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,234.70 : 94,092.12 = 53,870.70 : x
  2. Step 2: Convert to fraction form
    68,234.70/94,092.12 = 53,870.70/x
  3. Step 3: Cross multiply
    68,234.70x = 94,092.12 × 53,870.70
  4. Step 4: Simplify right side
    68,234.70x = 5,068,808,368.88
  5. Step 5: Solve for x
    x = 5,068,808,368.88/68,234.70
  6. Step 6: Final answer
    x = 74,284.91

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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.