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Finding the Fourth Proportional to 70,753.28, 105,995.04 and 36,461.12

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Solution

The fourth proportional to 70,753.28, 105,995.04 and 36,461.12 is: 54,622.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,753.28 : 105,995.04 = 36,461.12 : x
  2. Step 2: Convert to fraction form
    70,753.28/105,995.04 = 36,461.12/x
  3. Step 3: Cross multiply
    70,753.28x = 105,995.04 × 36,461.12
  4. Step 4: Simplify right side
    70,753.28x = 3,864,697,872.84
  5. Step 5: Solve for x
    x = 3,864,697,872.84/70,753.28
  6. Step 6: Final answer
    x = 54,622.17

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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.