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Finding the Fourth Proportional to 81,663.84, 122,545.44 and 37,311.84

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Solution

The fourth proportional to 81,663.84, 122,545.44 and 37,311.84 is: 55,990.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,663.84 : 122,545.44 = 37,311.84 : x
  2. Step 2: Convert to fraction form
    81,663.84/122,545.44 = 37,311.84/x
  3. Step 3: Cross multiply
    81,663.84x = 122,545.44 × 37,311.84
  4. Step 4: Simplify right side
    81,663.84x = 4,572,395,850.01
  5. Step 5: Solve for x
    x = 4,572,395,850.01/81,663.84
  6. Step 6: Final answer
    x = 55,990.46

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1.5x scale

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.