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Finding the Fourth Proportional to 66,125.05, 99,230.10 and 36,564.10

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Solution

The fourth proportional to 66,125.05, 99,230.10 and 36,564.10 is: 54,869.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,125.05 : 99,230.10 = 36,564.10 : x
  2. Step 2: Convert to fraction form
    66,125.05/99,230.10 = 36,564.10/x
  3. Step 3: Cross multiply
    66,125.05x = 99,230.10 × 36,564.10
  4. Step 4: Simplify right side
    66,125.05x = 3,628,259,299.41
  5. Step 5: Solve for x
    x = 3,628,259,299.41/66,125.05
  6. Step 6: Final answer
    x = 54,869.66

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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.