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Finding the Fourth Proportional to 99,693.94, 149,497.14 and 37,320.70

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Solution

The fourth proportional to 99,693.94, 149,497.14 and 37,320.70 is: 55,964.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,693.94 : 149,497.14 = 37,320.70 : x
  2. Step 2: Convert to fraction form
    99,693.94/149,497.14 = 37,320.70/x
  3. Step 3: Cross multiply
    99,693.94x = 149,497.14 × 37,320.70
  4. Step 4: Simplify right side
    99,693.94x = 5,579,337,912.80
  5. Step 5: Solve for x
    x = 5,579,337,912.80/99,693.94
  6. Step 6: Final answer
    x = 55,964.66

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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.