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Finding the Fourth Proportional to 68,107.40, 93,990.90 and 41,234.72

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Solution

The fourth proportional to 68,107.40, 93,990.90 and 41,234.72 is: 56,905.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,107.40 : 93,990.90 = 41,234.72 : x
  2. Step 2: Convert to fraction form
    68,107.40/93,990.90 = 41,234.72/x
  3. Step 3: Cross multiply
    68,107.40x = 93,990.90 × 41,234.72
  4. Step 4: Simplify right side
    68,107.40x = 3,875,688,444.05
  5. Step 5: Solve for x
    x = 3,875,688,444.05/68,107.40
  6. Step 6: Final answer
    x = 56,905.54

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1.5x scale

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.