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Finding the Fourth Proportional to 73,247.80, 109,871.70 and 64,694.20

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Solution

The fourth proportional to 73,247.80, 109,871.70 and 64,694.20 is: 97,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,247.80 : 109,871.70 = 64,694.20 : x
  2. Step 2: Convert to fraction form
    73,247.80/109,871.70 = 64,694.20/x
  3. Step 3: Cross multiply
    73,247.80x = 109,871.70 × 64,694.20
  4. Step 4: Simplify right side
    73,247.80x = 7,108,061,734.14
  5. Step 5: Solve for x
    x = 7,108,061,734.14/73,247.80
  6. Step 6: Final answer
    x = 97,041.30

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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.