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Finding the Fourth Proportional to 66,878.54, 100,350.44 and 29,433.89

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Solution

The fourth proportional to 66,878.54, 100,350.44 and 29,433.89 is: 44,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,878.54 : 100,350.44 = 29,433.89 : x
  2. Step 2: Convert to fraction form
    66,878.54/100,350.44 = 29,433.89/x
  3. Step 3: Cross multiply
    66,878.54x = 100,350.44 × 29,433.89
  4. Step 4: Simplify right side
    66,878.54x = 2,953,703,812.41
  5. Step 5: Solve for x
    x = 2,953,703,812.41/66,878.54
  6. Step 6: Final answer
    x = 44,165.20

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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.