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Finding the Fourth Proportional to 266,216.02, 399,325.14 and 66,536.67

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Solution

The fourth proportional to 266,216.02, 399,325.14 and 66,536.67 is: 99,805.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,216.02 : 399,325.14 = 66,536.67 : x
  2. Step 2: Convert to fraction form
    266,216.02/399,325.14 = 66,536.67/x
  3. Step 3: Cross multiply
    266,216.02x = 399,325.14 × 66,536.67
  4. Step 4: Simplify right side
    266,216.02x = 26,569,766,560.35
  5. Step 5: Solve for x
    x = 26,569,766,560.35/266,216.02
  6. Step 6: Final answer
    x = 99,805.29

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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.