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Finding the Fourth Proportional to 66,756.52, 100,169.29 and 29,342.86

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Solution

The fourth proportional to 66,756.52, 100,169.29 and 29,342.86 is: 44,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,756.52 : 100,169.29 = 29,342.86 : x
  2. Step 2: Convert to fraction form
    66,756.52/100,169.29 = 29,342.86/x
  3. Step 3: Cross multiply
    66,756.52x = 100,169.29 × 29,342.86
  4. Step 4: Simplify right side
    66,756.52x = 2,939,252,951.92
  5. Step 5: Solve for x
    x = 2,939,252,951.92/66,756.52
  6. Step 6: Final answer
    x = 44,029.45

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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.