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Finding the Fourth Proportional to 106,404.21, 146,811.29 and 67,627.89

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Solution

The fourth proportional to 106,404.21, 146,811.29 and 67,627.89 is: 93,309.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,404.21 : 146,811.29 = 67,627.89 : x
  2. Step 2: Convert to fraction form
    106,404.21/146,811.29 = 67,627.89/x
  3. Step 3: Cross multiply
    106,404.21x = 146,811.29 × 67,627.89
  4. Step 4: Simplify right side
    106,404.21x = 9,928,537,432.74
  5. Step 5: Solve for x
    x = 9,928,537,432.74/106,404.21
  6. Step 6: Final answer
    x = 93,309.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.