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Finding the Fourth Proportional to 75,370.87, 112,908.46 and 43,714.42

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Solution

The fourth proportional to 75,370.87, 112,908.46 and 43,714.42 is: 65,485.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,370.87 : 112,908.46 = 43,714.42 : x
  2. Step 2: Convert to fraction form
    75,370.87/112,908.46 = 43,714.42/x
  3. Step 3: Cross multiply
    75,370.87x = 112,908.46 × 43,714.42
  4. Step 4: Simplify right side
    75,370.87x = 4,935,727,841.99
  5. Step 5: Solve for x
    x = 4,935,727,841.99/75,370.87
  6. Step 6: Final answer
    x = 65,485.88

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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.