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Finding the Fourth Proportional to 70,755.40, 105,990.63 and 32,751.10

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Solution

The fourth proportional to 70,755.40, 105,990.63 and 32,751.10 is: 49,060.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,755.40 : 105,990.63 = 32,751.10 : x
  2. Step 2: Convert to fraction form
    70,755.40/105,990.63 = 32,751.10/x
  3. Step 3: Cross multiply
    70,755.40x = 105,990.63 × 32,751.10
  4. Step 4: Simplify right side
    70,755.40x = 3,471,309,722.19
  5. Step 5: Solve for x
    x = 3,471,309,722.19/70,755.40
  6. Step 6: Final answer
    x = 49,060.70

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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.