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Finding the Fourth Proportional to 66,223.86, 99,432.99 and 41,369.82

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Solution

The fourth proportional to 66,223.86, 99,432.99 and 41,369.82 is: 62,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,223.86 : 99,432.99 = 41,369.82 : x
  2. Step 2: Convert to fraction form
    66,223.86/99,432.99 = 41,369.82/x
  3. Step 3: Cross multiply
    66,223.86x = 99,432.99 × 41,369.82
  4. Step 4: Simplify right side
    66,223.86x = 4,113,524,898.36
  5. Step 5: Solve for x
    x = 4,113,524,898.36/66,223.86
  6. Step 6: Final answer
    x = 62,115.45

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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.